LeechBlock NG
Zoom Page WE
Zoom web pages (either per-site or per-tab) using full-page zoom, text-only zoom and minimum font size. Fit-to-width zooming can be applied to pages automatically. Fit-to-window scaling can be applied to small images.
21,167 users
Power Thesaurus
Use the power of synonyms by button in toolbar, right-click or by word selection on any page.
1,706 users
Auto Tab Discard
Increase browser speed and reduce memory load and when you have numerous open tabs.
74,214 users
Tab Session Manager
Save and restore the state of windows and tabs. It also supports automatic saving and cloud sync.
150,807 users
New Tab Override
New Tab Override allows you to set the page that shows whenever you open a new tab.
62,425 users
YouTube Search Fixer
Remove ALL distracting search results, redirect shorts back to legacy page and try little visual changes suited for low resolution screens.
33,495 users
Dark Reader
Dark mode for every website. Take care of your eyes, use dark theme for night and daily browsing.
1,286,575 users
Read Aloud: A Text to Speech Voice Reader
Read out loud the current web-page article with one click. Supports 40+ languages.
204,227 users
Dark Mode
Dark theme and night shift mode for every website. Care your eyes, use Dark Mode for night and daily web browsing.
43,097 users
Sidebery
Vertical tabs tree and bookmarks in sidebar with advanced containers configuration, grouping and many other features.
60,369 users
'Improve YouTube!' 🎧 (For YouTube & Video)
Youtube Extension. Powerful but lightweight. Enrich your Youtube and content selection. Make YouTube tidy and smart! (Layout, Filters, Shortcuts, Playlist)
107,652 users
Turn Off the Lights for Firefox
The entire page will be fading to dark, so you can watch the videos as if you were in the cinema. Works for YouTube and Beyond. Dark mode for all websites. It works for all known video sites such as YouTube, Vimeo, Twitch, Dailymotion, Facebook, etc.
45,520 users
Adaptive Tab Bar Color
Changes the color of Firefox theme to match the website’s appearance.
36,303 users