diff --git a/lib/storage/providers/IDBKeyValProvider/createStore.ts b/lib/storage/providers/IDBKeyValProvider/createStore.ts
index d7c6d0f8b..f6c64718d 100644
--- a/lib/storage/providers/IDBKeyValProvider/createStore.ts
+++ b/lib/storage/providers/IDBKeyValProvider/createStore.ts
@@ -2,12 +2,48 @@ import * as IDB from 'idb-keyval';
 import type {UseStore} from 'idb-keyval';
 import * as Logger from '../../../Logger';
 
+const HEAL_ATTEMPTS_MAX = 3;
+
+/**
+ * Detects the Chromium-specific IDB backing store corruption error.
+ * Fires when LevelDB files backing IndexedDB are corrupted and Chrome's
+ * internal recovery (RepairDB -> delete -> recreate) also fails.
+ */
+function isBackingStoreError(error: unknown): boolean {
+    return error instanceof Error && error.message.includes('Internal error opening backing store');
+}
+
+/**
+ * Detects Safari/WebKit IDB connection termination errors.
+ * Fires when Safari kills the IDB server process for backgrounded tabs.
+ * WebKit bugs: https://bugs.webkit.org/show_bug.cgi?id=197050, https://bugs.webkit.org/show_bug.cgi?id=201483
+ */
+function isConnectionLostError(error: unknown): boolean {
+    if (!(error instanceof Error)) return false;
+    const msg = error.message.toLowerCase();
+    return msg.includes('connection to indexed database server lost') || msg.includes('connection is closing');
+}
+
+function isInvalidStateError(error: unknown): boolean {
+    return error instanceof Error && error.name === 'InvalidStateError';
+}
+
+/** Errors that trigger a budgeted heal-and-retry in store(). */
+function isBudgetedHealError(error: unknown): boolean {
+    return isBackingStoreError(error) || isConnectionLostError(error);
+}
+
+function getBudgetedHealErrorLabel(error: unknown): 'backing store' | 'connection lost' {
+    return isBackingStoreError(error) ? 'backing store' : 'connection lost';
+}
+
 // This is a copy of the createStore function from idb-keyval, we need a custom implementation
 // because we need to create the database manually in order to ensure that the store exists before we use it.
 // If the store does not exist, idb-keyval will throw an error
 // source: https://github.com/jakearchibald/idb-keyval/blob/9d19315b4a83897df1e0193dccdc29f78466a0f3/src/index.ts#L12
 function createStore(dbName: string, storeName: string): UseStore {
     let dbp: Promise<IDBDatabase> | undefined;
+    let healAttemptsRemaining = HEAL_ATTEMPTS_MAX;
 
     const attachHandlers = (db: IDBDatabase) => {
         // Browsers may close idle IDB connections at any time, especially Safari.
@@ -30,18 +66,27 @@ function createStore(dbName: string, storeName: string): UseStore {
         };
     };
 
+    // Cache the open promise and attach handlers + rejection cleanup.
+    // On rejection, clears dbp so the next operation retries with a fresh indexedDB.open()
+    // instead of returning the same rejected promise.
+    // Guard: only clear if dbp hasn't been replaced by a concurrent heal/retry.
+    function cacheOpenPromise(openPromise: Promise<IDBDatabase>) {
+        dbp = openPromise;
+        const currentPromise = openPromise;
+        openPromise.then(attachHandlers, () => {
+            if (dbp !== currentPromise) {
+                return;
+            }
+            dbp = undefined;
+        });
+        return openPromise;
+    }
+
     const getDB = () => {
         if (dbp) return dbp;
         const request = indexedDB.open(dbName);
         request.onupgradeneeded = () => request.result.createObjectStore(storeName);
-        dbp = IDB.promisifyRequest(request);
-
-        dbp.then(
-            attachHandlers,
-            // eslint-disable-next-line @typescript-eslint/no-empty-function
-            () => {},
-        );
-        return dbp;
+        return cacheOpenPromise(IDB.promisifyRequest(request));
     };
 
     // Ensures the store exists in the DB. If missing, bumps the version to trigger
@@ -66,10 +111,7 @@ function createStore(dbName: string, storeName: string): UseStore {
             updatedDatabase.createObjectStore(storeName);
         };
 
-        dbp = IDB.promisifyRequest(request);
-        // eslint-disable-next-line @typescript-eslint/no-empty-function
-        dbp.then(attachHandlers, () => {});
-        return dbp;
+        return cacheOpenPromise(IDB.promisifyRequest(request));
     };
 
     function executeTransaction<T>(txMode: IDBTransactionMode, callback: (store: IDBObjectStore) => T | PromiseLike<T>): Promise<T> {
@@ -78,23 +120,64 @@ function createStore(dbName: string, storeName: string): UseStore {
             .then((db) => callback(db.transaction(storeName, txMode).objectStore(storeName)));
     }
 
-    // If the connection was closed between getDB() resolving and db.transaction() executing,
-    // the transaction throws InvalidStateError. We catch it and retry once with a fresh connection.
+    function resetHealBudget<T>(result: T): T {
+        healAttemptsRemaining = HEAL_ATTEMPTS_MAX;
+        return result;
+    }
+
+    // Handles three recoverable error classes:
+    // 1. InvalidStateError — connection closed between getDB() resolving and db.transaction().
+    //    Retry once with a fresh connection. No budget limit (transient, always worth one reopen).
+    // 2. Backing store corruption (Chromium UnknownError) — drop cached connection and reopen.
+    // 3. Connection lost (Safari UnknownError) — IDB server terminated for backgrounded tabs.
+    //    Both 2 and 3 share a heal budget (3 attempts, reset on success).
+    //    Mirrors Dexie's PR1398_maxLoop pattern: https://github.com/dexie/Dexie.js/blob/master/src/functions/temp-transaction.ts
+    // Note: concurrent store() calls share the budget. Under overlapping failures each caller
+    // decrements independently, so the budget may drain faster than one-per-incident. This is
+    // acceptable — same as Dexie's approach — and the budget resets on any success.
     return (txMode, callback) =>
-        executeTransaction(txMode, callback).catch((error) => {
-            if (error instanceof DOMException && error.name === 'InvalidStateError') {
-                Logger.logAlert('IDB InvalidStateError, retrying with fresh connection', {
-                    dbName,
-                    storeName,
-                    txMode,
-                    errorMessage: error.message,
-                });
-                dbp = undefined;
-                // Retry only once — this call is not wrapped, so if it also fails the error propagates normally.
-                return executeTransaction(txMode, callback);
-            }
-            throw error;
-        });
+        executeTransaction(txMode, callback)
+            .then(resetHealBudget)
+            .catch((error) => {
+                if (isInvalidStateError(error)) {
+                    Logger.logAlert('IDB InvalidStateError — dropping cached connection and retrying', {
+                        dbName,
+                        storeName,
+                        txMode,
+                        errorMessage: error instanceof Error ? error.message : String(error),
+                    });
+                    dbp = undefined;
+                    return executeTransaction(txMode, callback).then(resetHealBudget);
+                }
+
+                if (isBudgetedHealError(error) && healAttemptsRemaining > 0) {
+                    healAttemptsRemaining--;
+                    const label = getBudgetedHealErrorLabel(error);
+                    Logger.logAlert(`IDB heal: ${label} error detected — dropping cached connection and reopening (${healAttemptsRemaining} attempts left)`, {
+                        dbName,
+                        storeName,
+                    });
+                    dbp = undefined;
+                    return executeTransaction(txMode, callback).then((result) => {
+                        Logger.logInfo(`IDB heal: successfully recovered after ${label} error`, {dbName, storeName});
+                        return resetHealBudget(result);
+                    });
+                }
+
+                if (isBudgetedHealError(error)) {
+                    Logger.logAlert(`IDB heal: ${getBudgetedHealErrorLabel(error)} error — heal budget exhausted, giving up`, {
+                        dbName,
+                        storeName,
+                    });
+                } else {
+                    Logger.logAlert('IDB error is not recoverable, giving up', {
+                        dbName,
+                        storeName,
+                        errorMessage: error instanceof Error ? error.message : String(error),
+                    });
+                }
+                throw error;
+            });
 }
 
 export default createStore;
diff --git a/tests/unit/storage/providers/createStoreTest.ts b/tests/unit/storage/providers/createStoreTest.ts
index 231244706..b9a71f57e 100644
--- a/tests/unit/storage/providers/createStoreTest.ts
+++ b/tests/unit/storage/providers/createStoreTest.ts
@@ -96,7 +96,8 @@ describe('createStore', () => {
 
             await expect(store('readonly', (s) => IDB.promisifyRequest(s.get('key1')))).rejects.toThrow(DOMException);
             expect(callCount).toBe(1);
-            expect(logAlertSpy).not.toHaveBeenCalled();
+            expect(logAlertSpy).toHaveBeenCalledWith('IDB error is not recoverable, giving up', expect.objectContaining({errorMessage: 'Not found'}));
+            expect(logAlertSpy).not.toHaveBeenCalledWith(expect.stringContaining('dropping cached connection'), expect.anything());
         });
 
         it('should not retry on non-DOMException errors', async () => {
@@ -115,7 +116,8 @@ describe('createStore', () => {
 
             await expect(store('readonly', (s) => IDB.promisifyRequest(s.get('key1')))).rejects.toThrow(TypeError);
             expect(callCount).toBe(1);
-            expect(logAlertSpy).not.toHaveBeenCalled();
+            expect(logAlertSpy).toHaveBeenCalledWith('IDB error is not recoverable, giving up', expect.objectContaining({errorMessage: 'Something went wrong'}));
+            expect(logAlertSpy).not.toHaveBeenCalledWith(expect.stringContaining('dropping cached connection'), expect.anything());
         });
 
         it('should preserve data integrity after a successful retry', async () => {
@@ -174,7 +176,7 @@ describe('createStore', () => {
                 return IDB.promisifyRequest(s.transaction);
             });
 
-            expect(logAlertSpy).toHaveBeenCalledWith('IDB InvalidStateError, retrying with fresh connection', {
+            expect(logAlertSpy).toHaveBeenCalledWith('IDB InvalidStateError — dropping cached connection and retrying', {
                 dbName,
                 storeName: STORE_NAME,
                 txMode: 'readwrite',
@@ -245,4 +247,310 @@ describe('createStore', () => {
             expect(result).toBe('value');
         });
     });
+
+    describe('backing store healing', () => {
+        /**
+         * Helper: creates a DOMException matching Chromium's backing store corruption error.
+         */
+        function backingStoreError() {
+            return new DOMException('Internal error opening backing store for indexedDB.open.', 'UnknownError');
+        }
+
+        it('should heal mid-session by dropping cached connection and reopening', async () => {
+            const store = createStore(uniqueDBName(), STORE_NAME);
+
+            await store('readwrite', (s) => {
+                s.put('value', 'key1');
+                return IDB.promisifyRequest(s.transaction);
+            });
+
+            const original = IDBDatabase.prototype.transaction;
+            let callCount = 0;
+            jest.spyOn(IDBDatabase.prototype, 'transaction').mockImplementation(function (this: IDBDatabase, ...args) {
+                callCount++;
+                if (callCount === 1) {
+                    throw backingStoreError();
+                }
+                return original.apply(this, args);
+            });
+
+            const result = await store('readonly', (s) => IDB.promisifyRequest(s.get('key1')));
+            expect(result).toBe('value');
+            expect(callCount).toBe(2);
+            expect(logAlertSpy).toHaveBeenCalledWith('IDB heal: backing store error detected — dropping cached connection and reopening (2 attempts left)', expect.objectContaining({dbName: expect.any(String)}));
+            expect(logInfoSpy).toHaveBeenCalledWith('IDB heal: successfully recovered after backing store error', expect.objectContaining({dbName: expect.any(String)}));
+        });
+
+        it('should heal on init when indexedDB.open() rejects with UnknownError', async () => {
+            const dbName = uniqueDBName();
+
+            // Pre-create the DB with data
+            const setupStore = createStore(dbName, STORE_NAME);
+            await setupStore('readwrite', (s) => {
+                s.put('persisted', 'key1');
+                return IDB.promisifyRequest(s.transaction);
+            });
+
+            // Fresh store instance (simulates app restart — dbp starts undefined)
+            const store = createStore(dbName, STORE_NAME);
+
+            // Mock indexedDB.open to fail twice, then succeed.
+            // First failure: initial open in the first store() call.
+            // Second failure: the heal retry's open in that same call — propagates error.
+            // Third call (second store() invocation): succeeds, proving budget still has 1 left.
+            const realOpen = indexedDB.open.bind(indexedDB);
+            let openCallCount = 0;
+            jest.spyOn(indexedDB, 'open').mockImplementation((name: string, version?: number) => {
+                openCallCount++;
+                if (openCallCount <= 2) {
+                    const req = {} as IDBOpenDBRequest;
+                    Promise.resolve().then(() => {
+                        Object.defineProperty(req, 'error', {value: backingStoreError(), configurable: true});
+                        req.onerror?.(new Event('error') as Event & {target: IDBOpenDBRequest});
+                    });
+                    return req;
+                }
+                return realOpen(name, version);
+            });
+
+            // First call: open fails, heal retry also fails — error propagates
+            await expect(store('readonly', (s) => IDB.promisifyRequest(s.get('key1')))).rejects.toThrow('Internal error opening backing store');
+
+            // Second call: open succeeds (mock exhausted), heals
+            const result = await store('readonly', (s) => IDB.promisifyRequest(s.get('key1')));
+            expect(result).toBe('persisted');
+            expect(openCallCount).toBeGreaterThanOrEqual(3);
+        });
+
+        it('should stop healing after budget exhausts across multiple operations', async () => {
+            const store = createStore(uniqueDBName(), STORE_NAME);
+
+            // All opens fail permanently
+            jest.spyOn(indexedDB, 'open').mockImplementation(() => {
+                const req = {} as IDBOpenDBRequest;
+                Promise.resolve().then(() => {
+                    Object.defineProperty(req, 'error', {value: backingStoreError(), configurable: true});
+                    req.onerror?.(new Event('error') as Event & {target: IDBOpenDBRequest});
+                });
+                return req;
+            });
+
+            // Each call consumes 1 heal attempt (initial fails, heal retry also fails, propagates)
+            await expect(store('readonly', (s) => IDB.promisifyRequest(s.get('k')))).rejects.toThrow('Internal error opening backing store');
+            await expect(store('readonly', (s) => IDB.promisifyRequest(s.get('k')))).rejects.toThrow('Internal error opening backing store');
+            await expect(store('readonly', (s) => IDB.promisifyRequest(s.get('k')))).rejects.toThrow('Internal error opening backing store');
+
+            // Budget exhausted — 4th call should NOT attempt healing, but should log budget exhausted
+            logAlertSpy.mockClear();
+            await expect(store('readonly', (s) => IDB.promisifyRequest(s.get('k')))).rejects.toThrow('Internal error opening backing store');
+            expect(logAlertSpy).toHaveBeenCalledWith(expect.stringContaining('heal budget exhausted'), expect.anything());
+            expect(logAlertSpy).not.toHaveBeenCalledWith(expect.stringContaining('dropping cached connection and reopening'), expect.anything());
+        });
+
+        it('should reset heal budget after a successful operation', async () => {
+            const dbName = uniqueDBName();
+            const store = createStore(dbName, STORE_NAME);
+
+            await store('readwrite', (s) => {
+                s.put('value', 'key1');
+                return IDB.promisifyRequest(s.transaction);
+            });
+
+            const original = IDBDatabase.prototype.transaction;
+
+            // Drain budget to 1 remaining: fail twice, each heals successfully
+            for (let i = 0; i < 2; i++) {
+                let callCount = 0;
+                const spy = jest.spyOn(IDBDatabase.prototype, 'transaction').mockImplementation(function (this: IDBDatabase, ...args) {
+                    callCount++;
+                    if (callCount === 1) {
+                        throw backingStoreError();
+                    }
+                    spy.mockRestore();
+                    return original.apply(this, args);
+                });
+                await store('readonly', (s) => IDB.promisifyRequest(s.get('key1')));
+            }
+
+            // Clean success — resets budget to 3
+            jest.restoreAllMocks();
+            logInfoSpy = jest.spyOn(Logger, 'logInfo');
+            await store('readonly', (s) => IDB.promisifyRequest(s.get('key1')));
+
+            // Now fail 3 more times — all should still heal (proving budget was reset)
+            for (let i = 0; i < 3; i++) {
+                let callCount = 0;
+                const spy = jest.spyOn(IDBDatabase.prototype, 'transaction').mockImplementation(function (this: IDBDatabase, ...args) {
+                    callCount++;
+                    if (callCount === 1) {
+                        throw backingStoreError();
+                    }
+                    spy.mockRestore();
+                    return original.apply(this, args);
+                });
+                const result = await store('readonly', (s) => IDB.promisifyRequest(s.get('key1')));
+                expect(result).toBe('value');
+            }
+        });
+
+        it('should not attempt healing for non-backing-store errors', async () => {
+            const store = createStore(uniqueDBName(), STORE_NAME);
+
+            await store('readwrite', (s) => {
+                s.put('value', 'key1');
+                return IDB.promisifyRequest(s.transaction);
+            });
+
+            // UnknownError but different message
+            jest.spyOn(IDBDatabase.prototype, 'transaction').mockImplementation(() => {
+                throw new DOMException('Some other unknown error', 'UnknownError');
+            });
+            await expect(store('readonly', (s) => IDB.promisifyRequest(s.get('key1')))).rejects.toThrow('Some other unknown error');
+
+            jest.restoreAllMocks();
+            logAlertSpy = jest.spyOn(Logger, 'logAlert');
+
+            // QuotaExceededError
+            jest.spyOn(IDBDatabase.prototype, 'transaction').mockImplementation(() => {
+                throw new DOMException('Quota exceeded', 'QuotaExceededError');
+            });
+            await expect(store('readonly', (s) => IDB.promisifyRequest(s.get('key1')))).rejects.toThrow('Quota exceeded');
+
+            expect(logAlertSpy).not.toHaveBeenCalledWith(expect.stringContaining('dropping cached connection and reopening'), expect.anything());
+            expect(logAlertSpy).toHaveBeenCalledWith('IDB error is not recoverable, giving up', expect.objectContaining({errorMessage: 'Quota exceeded'}));
+        });
+    });
+
+    describe('connection lost healing', () => {
+        function connectionLostError() {
+            return new DOMException('Connection to Indexed Database server lost. Refresh the page to try again', 'UnknownError');
+        }
+
+        it('should heal by dropping cached connection and reopening', async () => {
+            const store = createStore(uniqueDBName(), STORE_NAME);
+
+            await store('readwrite', (s) => {
+                s.put('value', 'key1');
+                return IDB.promisifyRequest(s.transaction);
+            });
+
+            const original = IDBDatabase.prototype.transaction;
+            let callCount = 0;
+            jest.spyOn(IDBDatabase.prototype, 'transaction').mockImplementation(function (this: IDBDatabase, ...args) {
+                callCount++;
+                if (callCount === 1) {
+                    throw connectionLostError();
+                }
+                return original.apply(this, args);
+            });
+
+            const result = await store('readonly', (s) => IDB.promisifyRequest(s.get('key1')));
+            expect(result).toBe('value');
+            expect(callCount).toBe(2);
+            expect(logAlertSpy).toHaveBeenCalledWith(
+                expect.stringContaining('connection lost error detected — dropping cached connection and reopening'),
+                expect.objectContaining({dbName: expect.any(String)}),
+            );
+            expect(logInfoSpy).toHaveBeenCalledWith(
+                'IDB heal: successfully recovered after connection lost error',
+                expect.objectContaining({dbName: expect.any(String)}),
+            );
+        });
+
+        it('should stop healing after budget exhausts', async () => {
+            const store = createStore(uniqueDBName(), STORE_NAME);
+
+            // All transaction calls fail permanently with connection lost.
+            // The heal path clears dbp and calls indexedDB.open() again — mock that to
+            // also fail so fake-indexeddb doesn't deadlock waiting for the old connection
+            // to close (same pattern as the backing store budget exhaustion test).
+            jest.spyOn(IDBDatabase.prototype, 'transaction').mockImplementation(() => {
+                throw connectionLostError();
+            });
+            jest.spyOn(indexedDB, 'open').mockImplementation(() => {
+                const req = {} as IDBOpenDBRequest;
+                Promise.resolve().then(() => {
+                    Object.defineProperty(req, 'error', {value: connectionLostError(), configurable: true});
+                    req.onerror?.(new Event('error') as Event & {target: IDBOpenDBRequest});
+                });
+                return req;
+            });
+
+            // Each call drains 1 heal attempt (initial fails, heal retry also fails)
+            await expect(store('readonly', (s) => IDB.promisifyRequest(s.get('k')))).rejects.toThrow('Connection to Indexed Database server lost');
+            await expect(store('readonly', (s) => IDB.promisifyRequest(s.get('k')))).rejects.toThrow('Connection to Indexed Database server lost');
+            await expect(store('readonly', (s) => IDB.promisifyRequest(s.get('k')))).rejects.toThrow('Connection to Indexed Database server lost');
+
+            // Budget exhausted — 4th call should NOT attempt healing, but should log budget exhausted
+            logAlertSpy.mockClear();
+            await expect(store('readonly', (s) => IDB.promisifyRequest(s.get('k')))).rejects.toThrow('Connection to Indexed Database server lost');
+            expect(logAlertSpy).toHaveBeenCalledWith(expect.stringContaining('heal budget exhausted'), expect.anything());
+            expect(logAlertSpy).not.toHaveBeenCalledWith(expect.stringContaining('dropping cached connection and reopening'), expect.anything());
+        });
+
+        it('should also heal "connection is closing" variant', async () => {
+            const store = createStore(uniqueDBName(), STORE_NAME);
+
+            await store('readwrite', (s) => {
+                s.put('value', 'key1');
+                return IDB.promisifyRequest(s.transaction);
+            });
+
+            const original = IDBDatabase.prototype.transaction;
+            let callCount = 0;
+            jest.spyOn(IDBDatabase.prototype, 'transaction').mockImplementation(function (this: IDBDatabase, ...args) {
+                callCount++;
+                if (callCount === 1) {
+                    throw new DOMException('Connection is closing.', 'UnknownError');
+                }
+                return original.apply(this, args);
+            });
+
+            const result = await store('readonly', (s) => IDB.promisifyRequest(s.get('key1')));
+            expect(result).toBe('value');
+            expect(callCount).toBe(2);
+        });
+
+        it('should share heal budget with backing store errors', async () => {
+            const store = createStore(uniqueDBName(), STORE_NAME);
+
+            // All transaction calls fail permanently, alternating error types.
+            // The heal path clears dbp and calls indexedDB.open() again — mock that to
+            // also fail so fake-indexeddb doesn't deadlock waiting for the old connection
+            // to close.
+            const txErrors = [
+                new DOMException('Internal error opening backing store for indexedDB.open.', 'UnknownError'),
+                connectionLostError(),
+                new DOMException('Internal error opening backing store for indexedDB.open.', 'UnknownError'),
+            ];
+            let txErrorIndex = 0;
+            jest.spyOn(IDBDatabase.prototype, 'transaction').mockImplementation(() => {
+                const err = txErrors[Math.min(txErrorIndex, txErrors.length - 1)];
+                txErrorIndex++;
+                throw err;
+            });
+            jest.spyOn(indexedDB, 'open').mockImplementation(() => {
+                const req = {} as IDBOpenDBRequest;
+                Promise.resolve().then(() => {
+                    Object.defineProperty(req, 'error', {
+                        value: new DOMException('Internal error opening backing store for indexedDB.open.', 'UnknownError'),
+                        configurable: true,
+                    });
+                    req.onerror?.(new Event('error') as Event & {target: IDBOpenDBRequest});
+                });
+                return req;
+            });
+
+            // 3 calls drain the budget (each call: fail + heal retry fail = 1 budget)
+            await expect(store('readonly', (s) => IDB.promisifyRequest(s.get('k')))).rejects.toThrow();
+            await expect(store('readonly', (s) => IDB.promisifyRequest(s.get('k')))).rejects.toThrow();
+            await expect(store('readonly', (s) => IDB.promisifyRequest(s.get('k')))).rejects.toThrow();
+
+            // Budget exhausted — no more healing for either error type
+            logAlertSpy.mockClear();
+            await expect(store('readonly', (s) => IDB.promisifyRequest(s.get('k')))).rejects.toThrow();
+            expect(logAlertSpy).toHaveBeenCalledWith(expect.stringContaining('heal budget exhausted'), expect.anything());
+            expect(logAlertSpy).not.toHaveBeenCalledWith(expect.stringContaining('dropping cached connection and reopening'), expect.anything());
+        });
+    });
 });