Web browser add-on that prevents YouTube's automatic translations! It keeps titles, descriptions, and audio in their original language.

Automatically skip Ads, Intros, Credits, etc. on all major Streaming services

This rule is for uBlacklist. there is also a rule for uBlock Origin in Firefox for Android.

Browser extension that translates words from English to Russian using LinguaLeo API

Instructions on getting stable Android Firefox (Fenix/Daylight) to take non-listed addons. (The hard way. See also Rhys-T/addonInjectorForFenix for the easy way.)

Lets you install more addons into the Android version of Firefox. Does not require root - just `adb` access. (Mostly obsolete since Firefox 122.)

Lichess Puzzle Timer — Bring the tension of real games to every Lichess puzzle. Any motif, any difficulty, any time, and any device (except iOS). A browser extension that implements a timer to puzzles in Lichess. Works on both Chrome and Firefox (and Firefox for Android).

An extension for Firefox for Android