Why is a folder named 【chrome-extension_fhnhmanninoolfemajedlhafeongbdnh_0.indexeddb.blob】 being created?

### Prerequisites - [x] This is **NOT** a [_YouTube_](https://www.github.com/uBlockOrigin/uAssets/issues/30157), [_Facebook_](https://www.github.com/uBlockOrigin/uAssets/issues/3367), [_Twitch_](https://www.github.com/uBlockOrigin/uAssets/issues/5184), [_Spotify_](https://www.github.com/uBlockOrigin/uAssets/issues/22198) or [_a shortener/hosting site_](https://www.github.com/uBlockOrigin/uAssets/discussions/27472) report. _These sites MUST be reported by clicking their **respective links**_. - [x] I read and understand the [policy about what is a valid filter issue](https://github.com/uBlockOrigin/uAssets/blob/master/README.md#uassets). - [x] I verified that this issue is not a duplicate. (Use this [button](https://user-images.githubusercontent.com/585534/146582579-c32707a0-36a1-4cc5-ad50-83172c9f67a8.png) to find out.). Comment in the old issue threads even when they are closed or even if you have a different problem. - [x] I did not remove any of the [default filter lists](https://github.com/user-attachments/assets/1879fc88-09bc-4de4-9e2f-3834a6ab396a), or I have verified that the issue was not caused by removing any of the default lists. - [x] I did not enable additional or non-default filter lists, or I have identified which specific stock list is causing the issue. - [x] I do not have custom filters/rules, or I have verified that the issue still occurs without custom filters/rules. - [x] I have verified that the web browser's built-in content blocker/tracking protection, [network wide/DNS blocking](https://en.wikipedia.org/wiki/DNS_blocking), or my VPN is not causing the issue. - [x] I have turned off all other extensions and the issue still persists. (exception "[Firefox Multi-Account Containers](https://addons.mozilla.org/en-US/firefox/addon/multi-account-containers)"). - [x] If this is about a breakage or detection, I have verified that it is caused by uBlock Origin and isn't a site or browser issue. - [x] I have verified that the browser I am using is up to date with no pending updates. - [x] I did not answer truthfully to **ALL** the above checkboxes. ### URL(s) where the issue occurs. ```yaml https://lrepacks.net/ ``` ### Description Since version 1.56, a folder named 【chrome-extension_fhnhmanninoolfemajedlhafeongbdnh_0.indexeddb.blob】 has been created in IndexedDB, and this folder can grow to 70-80 MB. It's getting increasingly clunky! Please remove this folder! If you don't remove it, I'll have to abandon uBlock Origin and use another company's ad-blocking extension! ### Browser name and version Chromium 149.0.7801 ### Other extensions used Chinese ### Country china ### Screenshot(s) <details> <summary>Screenshot(s)</summary> <!-- Drag-and-drop screenshot here --> <!-- ⬇️ ⬇️ ⬇️ --> <!-- ⬆️ ⬆️ ⬆️ --> </details> ### Configuration <details> ```yaml uBlock Origin: 1.70.1b4 Chromium: 132 filterset (summary): network: 188467 cosmetic: 92705 scriptlet: 41002 html: 0 listset (total-discarded, last-updated): added: fanboy-cookiemonster: 46270-94, 18m default: user-filters: 0-0, never ublock-filters: 50948-102, 2m Δ ublock-badware: 10862-34, 2m Δ ublock-privacy: 4009-4, 2m Δ ublock-unbreak: 2752-1, 2m Δ ublock-quick-fixes: 455-0, 2m Δ easylist: 94756-509, 2m Δ easyprivacy: 55695-700, 2m Δ urlhaus-1: 27720-11, 23m plowe-0: 3514-0, 23m CHN-0: 26851-67, 23m filterset (user): [empty] userSettings: [none] hiddenSettings: [none] supportStats: allReadyAfter: 315 ms (selfie) maxAssetCacheWait: 32 ms cacheBackend: indexedDB ``` </details>