CleanBookmarks od Kustrica

CleanBookmarks is a lightweight Firefox extension for tidier bookmark folders and faster saving. It automatically hides empty or URL‑like bookmark titles so your folders show a clean, favicon‑only view, and it adds a quick “Add bookmark” entry to the bookmarks folder context menu to save the current page instantly.

Auto‑hide empty titles
When a bookmark title is empty or looks like its URL, the extension replaces it with an invisible title so only the icon remains visible in your folders.
- Quick add from folder menu – Right‑click any bookmarks folder and choose “Add bookmark” to save the current tab to that folder in one step.

Technical details
- Manifest V3
- Event‑based, no background activity when idle
- No data collection, tracking, or analytics

Localization
The extension is fully translated into 19 languages, including:
English, Spanish, German, French, Russian, Belarusian, Chinese (Simplified and Traditional), Japanese, Portuguese, Italian, Korean, Polish, Dutch, Turkish, Ukrainian, Indonesian, Arabic, and Vietnamese.

Source
https://github.com/Kustrica/CleanBookmarks