Add-ons
To try the thousands of add-ons available here, download Mozilla Firefox, a fast, free way to surf the Web!
CloseWelcome to Firefox Add-ons.
Choose from thousands of extra features and styles to make Firefox your own.
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Stylish Sync
Thin Tabs
Extremely thin tabs optimized for the squared variants of Classic Theme Restorer.
Please see description for updates!
Column Reader
Web reader for wide screens and long documents. Read with pleasure in attractive layouts.
ACColorPicker
A full featured color selector tool, to work with colors, and easily find the colors you want.
很方便色取色器，可以页面上直接取色，然后再对颜色进行进一步的调整
Fast Close Tabs
Requires Restart
Closing the window closes the active tab instead of the window.
lolifox - Fierr MOD
Requires Restart
Replaces the error page with a lolifox appearance with additional features.
Show History Popup
When you press the middle mouse button or scroll wheel mouse show popup window the history in the url bar and search bar.
tab-counter
Closy
Requires Restart
Provides close all blank/duplicate tabs and Close all tabs to the left/right plus many other options.
FLST (Firefox 4+)
Requires Restart
Provides Focus Last Selected Tab and Tab flipping functionality (based on the FLST extensions by Gorgias and Gozer, but ported to Firefox 4/.../56 and repaired Tab flipping functionality). Enjoy!
Stylish Tools
Requires Restart
Quicker access to several Stylish features through a toolbar button and/or keyboard shortcuts. Available for Firefox, Thunderbird, and SeaMonkey
No Ads!
Xclear
Requires Restart
Safari-like icons in the URL, search and find fields to clear their contents.
Hide Fullscreen Alert
Hide Menubar
Requires Restart
Supports to hide Menu Bar automatically, you can press the ALT key to show it temporarily.
NiceReader
Requires Restart
NiceReader is designed for web reading. You can customize font, color, size, background, specify the elements to read, filiter ad elements, filiter ad strings, automaticaly turn page.
Switch Message Colour
Requires Restart
Adds a Toolbar-Button to Thunderbird to switch between the mails' original colouring and your user defined colouring.
printplus
Requires Restart
PDF export support by Gecko.
https://github.com/hATrayflood/printplus
Markdown Viewer
Requires Restart
Markdown document viewer.
Allows to visualize formatted markdown documents in browser.
Rebrand
Requires Restart
This wizard creates an XPI that rebrands Firefox, SeaMonkey or Thunderbird. You can change the brand name as well as the brand images and icons.
To create your own collections, you must have a Mozilla Add-ons account.
