Remove Multi Titles (YouTube)

Pins the first-seen title and thumbnail per video on YouTube (watch, Shorts, and lists) to reduce A/B title and thumbnail flicker.

YouTube sometimes shows different titles and thumbnails for the same video (for example A/B tests). This add-on remembers the first title and thumbnail you see for each video and keeps showing that on the player and in list-style pages (home, subscriptions, search, related videos, and similar). How it works: The first time a title/thumbnail appears for a video, it is saved locally in your browser. On later visits, that same one is always shown again for that video ID. Updates run after navigation (including YouTube’s in-page history changes), with short retries so metadata can load—there is no aggressive continuous polling of the whole page. Scope: The add-on only runs on youtube.com. It does not run on other sites. Privacy: No accounts, no analytics, and no requests to our servers. Pinned items are stored only in the browser’s extension storage on your device. See the privacy policy link on this listing for details. Requirements: Firefox 140 or newer (desktop). Firefox for Android 142 or newer, where applicable. Source & issues: https://github.com/Arzuparreta/remove-multi-titles-yt --- v3.0.0 — Release Notes - The extension no longer slows YouTube down, never holds a response, and no longer mixes titles or channels between pages. **Fixed** - Slow navigation and videos that kept loading until a hard refresh: responses are passed on immediately and patched as they stream, with no waiting on storage. - Titles and channels leaking from a previous page: aborted requests are honoured, and titles are learned only from certain id associations. - Labels such as "Up next" saved as video titles, the first video frame used as a thumbnail, and playlists/mixes pinned as videos. - The watch title changing a few seconds after load (updated_metadata). - Blurry or wrongly proportioned thumbnails: native sizes are kept, and a pinned thumbnail that no longer exists falls back to YouTube's own. **Changed** - Pins now also apply to the player, the tab title, Shorts and YouTube Music (Music pins are kept separately). - Existing pins are cleaned up automatically on first run. - Least-recently-seen pins are dropped first once the store is full. - The popup shows the pin count and has a "Clear pins" button. - Plays nicely with other extensions that fetch YouTube data, e.g. YouTube Anti Translate. - Only the storage permission is needed; there is no background script.