9,990 extensions found in Appearance

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Btools
Bilibili tools,increase user experience
Rated 4.6 out of 5
imba久期
522 users
Android new tabs in foreground
Opens new tabs in foreground.
Rated 4.9 out of 5
DaveRo
520 users
Black New Tab
Use a black page as your new tab page.
Rated 4.4 out of 5
yoasif
519 users
Image Data
Show image resolution, file type, and file size on mouse over
Rated 4.8 out of 5
cubeleco
516 users
YouTube Timestamps
Shows timestamps from YouTube comments on timeline.
Rated 4.3 out of 5
ris58h
514 users
Remove HTML Elements
Easily remove desired HTML5 elements with just one click!
Rated 4.1 out of 5
Sevina
514 users
Wikipedia Reading Lists
Save Wikipedia articles to read on Wikipedia’s iOS and Android apps
Rated 2.9 out of 5
Wikimedia Foundation
511 users
Enable Select Copy +Edit
A toolbar button to enable selection, copy and typing editing web text redirectly in a tab
Rated 4.3 out of 5
GarryW
510 users
Nord Theme
A Firefox Theme designed with nord color palette.
Rated 4.8 out of 5
Crozbo
509 users
Youtube repeat, speed up HTML5 video
Repeat, speed up, slow down Youtube and any HTML5 video. Create a loop with accuracy to milliseconds. Create mixed playlists.
Rated 4.4 out of 5
pbion.com
508 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
506 users
Multicopy
Copy multiple texts and do multiple pastes from right click menu
Rated 4.4 out of 5
Trishul
506 users
Window Layout Resizer
Resize the current window into different customizable layouts (Multiple monitors are supported).
Rated 4.1 out of 5
Ray
506 users
Tota11y: Accessibility toolkit
Inserts the tota11y JS file from Khan Academy into the current tab so that you can visualize how the current page performs with assistive technologies. All the credit goes to Khan Academy for their amazing script.
Rated 4.5 out of 5
Bogdan Lazar
504 users
Link Status Redux
Shows an indicator on a popup panel next to the link address when the mouse cursor is over a link to a page you have bookmarked or visited before, or if the link is currently open in a browser tab.
Rated 4.7 out of 5
Juha Aatrokoski
502 users
Reddit Sidebar Toggle
This web extension adds a toolbar button to toggle the sidebar on reddit.com
Rated 5 out of 5
2211
502 users
GIFs for GitHub
Easily search GIPHY to add a GIF into any Github comment box.
Rated 5 out of 5
Nick
497 users
Twitter Misc
Miscellaneous functions related to Twitter (This add-on was formerly called Twitter Old UI)
Rated 4.9 out of 5
zupffwhy
497 users
Custom Page Zoom
Easily set a custom zoom level for each website (or all websites)
Rated 3.4 out of 5
Kelvin
496 users
FireTitle
A webextension version of FireTitle, this version lacks some features of the original since WebExtension API doesn't permit to freely change a window's title.
Rated 4.5 out of 5
Capitaine Fab
496 users
Legacy Wikipedia
Enables the usage of various old layouts on every Wikipedia article.
Rated 4.8 out of 5
emy
493 users
Custom Google Visited Link Color
Customize the visited link color for google search results.
Rated 4 out of 5
iBoonie
492 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.
Rated 5 out of 5
Ed0ardo
492 users
ResizeIT
Resize and position Firefox with keys: ALT+1, 2, 3 and 4
Rated 4.6 out of 5
Glenn Hallin
492 users
Vonage® Integration Suite
Cloud phone system integration with top business applications. Done better.
Rated 5 out of 5
Vonage Integration Suite
491 users