9,964 extensions found in Appearance

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Yesterday For Old Reddit
For those who prefer the old reddit interface. An extension that switches reddit back to the old UI.
Rated 4.9 out of 5
ritinkar8
275 users
Toolbar Clock
Stylish analog clock for your browser toolbar.
Rated 4.4 out of 5
Muyor
274 users
CSDN便利助手
删除关注、复制限制
Rated 5 out of 5
Dingzb
274 users
Grayscale Browsing
Toggle grayscale on the active tab for the ultimate reading experience
Rated 4.5 out of 5
Martin C
273 users
New Tab Beside
A simple extension that opens new tab or duplicates right beside the current tab. Many other browsers have "open a new tab right next to current tab" feature built in but not Firefox, and so this extension was created.
Rated 4.5 out of 5
Firefox user 13285943
273 users
Youtube Recommendations Blocker
Blocks video recommendations on Youtube to keep you from getting distracted. Search results and direct links are still available.
Rated 4.3 out of 5
peabrainiac
272 users
Sidetabs
Tabs should be vertical
Rated 4.3 out of 5
Jeb Nicholson
271 users
ForceCopy
Allows you to copy content from sites with copy-protection.
Rated 2.1 out of 5
MrOnlineCoder
271 users
Order Tabs by Domain
Tabs ordered by domain, as god intended.
Rated 5 out of 5
dorian
270 users
Simple JavaScript Injector
This addon creates a small popup that lets you paste some JS code and inject it into the page you are currently seeing.
Rated 3.7 out of 5
Joel Perpetua
268 users
Ambient Mode Blocker
Turn off ambient mode automatically in youtube videos.
Rated 3.3 out of 5
Drogan
268 users
Dark YouTube Theme - Black YouTube Theme
Black YouTube. Black YouTube theme protects eyes by changing Youtube
Rated 4.4 out of 5
Package tracker
268 users
TorpedoRead
Enhanced text readability for the neurodivergent using font-weights, letter-spacing and brightness adjustment.
Rated 4.8 out of 5
Conor Reid
267 users
Cookie manager
Manage cookies for any webpage via an stylish popup window
Rated 4.6 out of 5
Karl
265 users
SCPper for Firefox
Handy little thing to improve your SCP browsing experience
Rated 4.3 out of 5
FiftyNine
265 users
Bookmarklets context menu
Add a context menu item contains only bookmarklets from bookmarks. With this extension, bookmarklets can make cross-origin requests, write to the clipboard, communicate with addons, etc. NEVER use untrusted bookmarklet!
Rated 4.8 out of 5
Mems
264 users
Hide YouTube "Members-Only" videos
Hides "members-only"-tagged videos on YouTube if they are on a ".../videos" URL page Free icons created by Abrrakhlaed2626 www.flaticon.com/free-icons/free
Rated 3.9 out of 5
Dan
264 users
Mainichi
Learn Japanese each time you open a new tab.
Rated 4.8 out of 5
mainichi
264 users
Hide Comments Everywhere
An anti-social social extension to hide commenting systems like Disqus, Livefyre, Twitter, WordPress, YouTube, etc.
Rated 4.8 out of 5
Grant Winney
264 users
Google.co.jp search
Add a search provider for Google.co.jp
Rated 5 out of 5
ys3669
263 users
Tab Colors
Selects a random color for each tab and displays the color while the tab is active. You can customize the colors to your liking and also set specific colors for websites.
Rated 3.2 out of 5
Max
263 users
AutoTube
Adds a switch to toggle auto replay of the current YouTube video
Rated 3.7 out of 5
Sarah
263 users
Peek: Preview PDFs, Office files, and more
Preview documents, videos, music, and more with a mouse hover.
Rated 4.3 out of 5
Corbin Davenport
263 users
CustomDirecte
★ Calcule et Affiche les moyennes ★ Ajoute des options de personnalisations [Couleurs - polices - Angles - Theme sombre] ★ Remplace l'ancienne barre latérale [Plus lisible - Prend moins de place - Regroupe plus de paramètre]
Rated 4.5 out of 5
Bastoon
263 users
Reddit Sidebar Hider
This simple extension toggles the sidebar on Reddit to reclaim some space the sidebar wastes. To toggle the sidebar click the icon in the upper right corner. DOESN'T WORK WITH REDDIT REDESIGN. Source : https://github.com/kiddico/Reddit-Sidebar-Hider
Rated 3.8 out of 5
Firefox user 12605971
262 users