10,898 extensions found in Appearance

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Twitter Misc
Miscellaneous functions related to Twitter (This add-on was formerly called Twitter Old UI)
Rated 4.9 out of 5
zupffwhy
446 users
Clock
Show a clock on current web page, Set the font, color, size and position of the clock.
Rated 3.9 out of 5
wwj
446 users
MathML-fonts
Fonts for Mozilla's MathML engine.
Rated 4 out of 5
Frédéric Wang
445 users
YoutubeDL-Material
The official Firefox extension of YoutubeDL-Material, an open-source and self-hosted YouTube downloader.
Rated 3.3 out of 5
tzahi12345
442 users
Mercator Studio for Google Meet
Change how you look on Google Meet with adjustable exposure, blur, vignette, and more!
Rated 4.6 out of 5
Xing
438 users
PageProof online proofing
Extends your experience of PageProof so you can review and approve anything and everything! Making feedback welcome.
Rated 4.6 out of 5
PageProof
436 users
Trello Improvements
Improve your trello experience. Automatically count trello cards, enhance existing and add new features, UI improvements.
Rated 4.5 out of 5
Robert Ivanov
435 users
Google & YouTube Cookie Consent Popup Blocker
Block “Before you continue” cookie consent popups on Google and YouTube
Rated 3.7 out of 5
DаvG25
435 users
Twitter検索プラグイン
Firefox 70.0.1 現在の既定のTwitter検索プラグインは、Twitter の新しいUIに対応しておらず、スラッシュが文字化けします。
There are no ratings yet
100の人 (エスパー・イーシア)
434 users
Unscroll Instagram
Remove infinite scrolling, reels and recommended posts for web Instagram.
Rated 4.2 out of 5
Asyncrom
433 users
SpoPlus - Edit Spotify Theme & Settings
2025 • Spotify extension that allows you to bring back classic heart button, set up new themes, fonts, remove annoying notifications, popups, and many more!
Rated 5 out of 5
fullstackdev
433 users
ydwd
Chinese <-> English word query or translation via Youdao's API.
Rated 4.3 out of 5
user59874622
432 users
MailTo
One click to open your mail client with the current tab's URL in a new message
Rated 3.1 out of 5
Anthropohedron
429 users
Back to Close WE
Use the back button to close newly opened tabs.
Rated 4.5 out of 5
Jas
428 users
GMail Opener
Opens mail.google.com after clicking on it. Does nothing else.
Rated 5 out of 5
Firefox user 13475792
428 users
Twitter Lume Reskin
Popular Dark Lume userstyle for Twitter, redone as a Mozilla Firefox Addon.
Rated 5 out of 5
Trixille
428 users
UsableHomeButton
Button for opening home page of any current site, with menu with parent URLs, items for opening in private window, copying titles and URLs, forgetting site or page, etc.
Rated 4.8 out of 5
Marat Tanalin
427 users
Youtube Skip Sign-in
This extension hides automatic sign-in pop-ups on Youtube.
Rated 3.5 out of 5
Kiko
427 users
CSS Toggler
Browser extension to quickly toggle CSS.
Rated 4.6 out of 5
ap
427 users
Extra sounds
Extra sounds for your Firefox (Navigation, downloads, and more)
Rated 4.7 out of 5
Jawhien
425 users
Automatic Reader View
Automatically load webpages in Firefox's Reader View – as the default for the websites you specify.
Rated 3.8 out of 5
Paul Morris
425 users
FreshView for YouTube™
Hide YouTube™ videos you've already watched to easily discover fresh content.
Rated 3.2 out of 5
Mikhail Andrenkov
424 users
SSHGate ssh client and terminal emulator
Open SSH client sessions with a terminal emulator
Rated 1.9 out of 5
RedCoolMedia
424 users
Page Translator
Translate any webpage on the fly
Rated 3.5 out of 5
Fire360Boy
423 users
SaveTabs
Saves URLs of open tabs into a text file.
Rated 4 out of 5
enchainingrealm
422 users