Save my Password
On some pages, Firefox won't ask you to store your login information. Using this add-on you can force Firefox to remember your password! This add-on is NOT a password manager!
1,026 users
Dark Mode Website Switcher
Adjusts the website's color scheme, so that all websites are dark by default, if they have a special design for that. It makes websites look dark even with a light system style.
1,026 users
AutoAuth
AutoAuth automatically submits HTTP authentication dialogs when you’ve chosen to have the browser save your login information.
1,026 users
Show External IP
Detects and shows your current external IP address in a convenient panel.
1,025 users
BookmarksHome
Create a page with bookmark links neatly arranged. (and it can be saved as HTML file.)
1,021 users
SpoPlus - Edit Spotify Theme & Settings
2026 • Spotify extension that allows you to bring back classic heart button, set up new themes, fonts, remove annoying notifications, popups, and many more!
1,020 users
Mirror Video X
Allows you to mirror or rotate a video within the web page, services such as YouTube and Twitch are supported, but it works on the majority of sites. Customizable keyboard shortcuts and user-friendly interface.
1,017 users
RTL Helper
Fix RTL layout issues for Persian, Arabic, Hebrew and other right-to-left languages
1,001 users
TubeMod
TubeMod allows you to customize YouTube's UI to your preferences, by keeping you focused on what matters!
996 users
Tab2QR
A minimalist browser extension that generates QR codes from your current tab, allows you to edit the encoded content, copy QR code image to clipboard, or download as PNG or SVG files.
991 users
Improvements for Twitter
Easy Twitter/X full quality image and video downloading with custom filenames, easy copying tweets with VXTwitter or FXTwitter links, sidebar and tweet button hiding, and other quality of life features!
990 users
Better DeepSeek
Enhanced UX layer for DeepSeek with hidden prompts, tools, memory, document generation, and long-work packaging.
983 users
Toggle dark mode
Toggle the content’s color scheme between preferring light or dark (or inheriting)
967 users
Reddit Comment Collapser
An easier way to collapse and get around comment threads on old and new Reddit.
966 users
Save to Trello
This firefox extension allows you to Create a Trello card from any webpage (including Gmail/webmail) / Ideal for Inbox Zero. You can save the current page to Trello. When you find something in Firefox that you want to view later put it in Trello.
963 users
