13,147 extensions found in Appearance

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Sticky Notes
Simple sticky notes utility which provides facility to make small notes of any thing.
Rated 3.7 out of 5
Trishul
943 users
Smarter Smartschool
- Adds a point total to Smartschool. - Adds custom theming to Smartschool.
Rated 3.8 out of 5
WaTh
939 users
Copy As Plain Text
Easily copy the selected text without formatting to the clipboard via right-click menu.
Rated 2.9 out of 5
ilGur
937 users
Slither.io Mods, Zoom, Unlock Skins, Bots
The Best Mod and Extension for Slither.io! Mod Zoom, Play with Friends, Skins, Custom Skins, Bots
Rated 3.9 out of 5
Firefox user 13052225
936 users
RotateView
Rotate the entire page or rotate fullscreen view to best fit the device aspect ratio
Rated 3.6 out of 5
thabubble
935 users
Font Contrast
Improves webpage readability.
Rated 4.4 out of 5
Francesco Fusco
932 users
Open in Microsoft Edge
Opens current tab in Microsoft Edge (by simply adding 'microsoft-edge:' to the URL, no additional native software needed).
Rated 4.6 out of 5
Alphalpha
925 users
YouTube use Flash Player
Force YouTube to use Flash player over the HTML5 player
Rated 4.5 out of 5
James Fray
918 users
Format Link
Format a link and copy it to the clipboard in your favorite format. You can use keyboard shortcuts, the toolbar button, or context menus to copy a link. You can escape meta characters, for example ] (closing square bracket) in markdown title.
Rated 4.3 out of 5
Hiroaki Nakamura
917 users
Resize Window & Viewport
Resize browser window or viewport to desired screen widths. Firefox's Responsive Design Mode (Ctrl + Shift + M) is great for mobile devices emulation.
Rated 3.3 out of 5
Moris Papasmadov
915 users
ProtonMail Launcher
A simple extension to open ProtonMail from the toolbar.
Rated 5 out of 5
PyroDonkey
910 users
NonStop YouTube™
YouTube running non stop No video paused continue watching, No video ads
Rated 4.2 out of 5
codehemu
909 users
Color Changer
Change a page's text, background, and link colors to your liking.
Rated 4.1 out of 5
webextdev
905 users
Better BTTV
Extend your BTTV experience with new features!
Rated 2.6 out of 5
Sky
902 users
Tab counter
Displays the number of tabs in the active window.
Rated 4.6 out of 5
WaldiPL
902 users
Elden Email
Shows an Elden Ring banner when you send an email
Rated 4.6 out of 5
mettignis
901 users
Sakuga Extended
Enjoy a better experience with SAKUGABOORU! Previews on posts, frame control on videos...
Rated 5 out of 5
Wevolve Team
901 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
898 users
Hello, Goodbye
Hello, Goodbye blocks annoying chat widgets and cookie banners to make your internet a little bit better.
Rated 3.8 out of 5
Bruce Roettgers
890 users
Vim Vixen
Accelerates your web browsing with Vim power!!
Rated 4.6 out of 5
Shin'ya Ueoka
884 users
Open With Photoshop
Open With Photoshop is a new companion for web and graphic designers to open up any web image with Adobe Photoshop via a single and quick mouse click.
Rated 3.2 out of 5
Baris Derin
883 users
Mute Tab
Full control of noisy tabs with keyboard shortcut support
Rated 4.8 out of 5
Balvin
881 users
Media Player for YouTube™
Media Player is an open-source project that aims to enhance the overall user experience by providing the end user with more control in what the playback process is concerned.
Rated 3.9 out of 5
Sarah Av.
879 users
ThemeSong for YouTube Music™ (Dynamic Themes)
Enhancer for YouTube Music™. Dynamic Themes, Visualizers, Lyrics, Sleep Timer, and more!
Rated 4.9 out of 5
Kris T
878 users
Search Site WE
Search within the current subdomain or within the entire domain, using the toolbar button or context menu.
Rated 4.8 out of 5
DW-dev
876 users