13,143 extensions found in Appearance

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Youtube mp3 & video downloader
Firefox extension to convert and download Youtube all videos for free in MP3 format.
Rated 3.5 out of 5
fonexsoftware.com
1,006 users
Userchrome Toggle Extended
This extension allows you to toggle userchrome.css styles on-the-fly with buttons and hotkeys. You'll be able to switch up to six styles
Rated 4.5 out of 5
N2ezr
1,003 users
Sentence Stepper
Step through page text sentence by sentence.
Rated 5 out of 5
carladevv
1,003 users
PX: Viewport Dimensions
Displays the viewport dimensions when a browser window is resized.
Rated 4.6 out of 5
Luke Peters
1,001 users
CustomCSS Injector
- Apply any CSS rules for any websites, including iframes. - Whitelist and Blacklist functionality - Apply CSS rules to specific URLs, Domains or Globally - Syntax highlighting & line numbers - Update without page refresh
Rated 4.4 out of 5
Blizz3
998 users
PopUp
Create a popup of pages with minimal browser UI; No bookmarks or navigation bar.
Rated 4.7 out of 5
aqt
994 users
TST Bookmarks Subpanel
Provides a bookmarks subpanel for Tree Style Tab's sidebar.
Rated 4.7 out of 5
Piro (piro_or)
992 users
Top and Bottom scroll buttons
Adds scroll to Top and Bottom buttons on all sites
Rated 4.4 out of 5
Dm3
991 users
Reddit Direct Images
Loads all images hosted on reddit directly in the browser.
Rated 4.3 out of 5
hustlesoft
990 users
Yahoo! Mail Notifier
Notifies you when new emails arrived in your Yahoo! Mail box
Rated 4.8 out of 5
def00111
989 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.
Rated 4.7 out of 5
Arnaud LEMERCIER
985 users
Bandcamp Tempo Adjust
An extension to adjust audio pitch on bandcamp
Rated 5 out of 5
miseryconfusion
984 users
Blank New Tab
Use a blank page as your new tab page.
Rated 4.8 out of 5
xofe
984 users
Google Images Downloader
Downloads full sized images & Links in Google Images Windows. It is different than other image downloaders since it goes one step inside the links & gets high quality images for you. This addon automatically also filters websites not giving images.
Rated 3.2 out of 5
Rushikesh Tade
979 users
Toggle dark mode
Toggle the content’s color scheme between preferring light or dark (or inheriting)
Rated 4.4 out of 5
Cimbali
974 users
QR Code Generator
Generate QR code from any text and save it as an SVG image
Rated 5 out of 5
keller
969 users
Speed Tweaks
Speed up your browser with 7 tweaks via toolbar popup.
Rated 3.5 out of 5
Benthum
961 users
VisusGG
VisusGG, a browser extension by x3picF4ilx (Bytenote) & MrMaxim, aims to improve the user experience on FACEIT's platform.
Rated 5 out of 5
Bytenote
958 users
Clipboard Manager
Easily access to recent clipboards via context-menu or toolbar popup.
Rated 3.1 out of 5
Muyor
958 users
Tab Unloader for Tree Style Tab
Tab unload options for Tree Style Tab.
Rated 4.8 out of 5
Lej77
953 users
JSON Viewer
Просмотр JSON файлов прямо в браузере
Rated 3.3 out of 5
li0ard
953 users
Simplify Gmail
Your time and attention matter -- Simplify Gmail enhances Gmail to boost productivity, strengthen privacy, and reduce stress. From the co-founder of Google Inbox.
Rated 4.7 out of 5
Michael Leggett
951 users
stutter
A Rapid Serial Visual Presentation (RSVP) extension for modern web browsers that allows for full page and selected text speed-reading of web content.
Rated 4.6 out of 5
James Tomasino
950 users
Modern Kiosk
Kiosk functionality extension for Firefox browsers
Rated 3.3 out of 5
cpg
946 users
IIIF Download
Allows user to download fullsize content from digital libraries serving content using IIIF technology.
Rated 4.3 out of 5
Symac
944 users