Search Results for tag "css"


Firebug integrates with Firefox to put a wealth of development tools at your fingertips while you browse. You can edit, debug, and monitor CSS, HTML, and JavaScript live in any web page...

Rated 4 out of 5 stars (2,596)
16,925 weekly downloads

Stylish - Custom themes for any website Compatible with Firefox 57+

Stylish lets you customize any website with custom user styles (themes for websites). Choose from the largest userstyles library to change the color scheme, background, and skin for Google, Facebook, YouTube and many, many more sites.

Rated 4 out of 5 stars (1,257)
10,954 weekly downloads

Web Developer Compatible with Firefox 57+

The Web Developer extension adds various web developer tools to the browser.

Rated 4 out of 5 stars (465)
8,616 weekly downloads

FirePath Requires Restart

FirePath is a Firebug extension that adds a development tool to edit, inspect and generate XPath 1.0 expressions, CSS 3 selectors and JQuery selectors (Sizzle selector engine).

Rated 4 out of 5 stars (44)
8,064 weekly downloads

Print Edit WE Compatible with Firefox 57+ Featured

Edit the contents of a web page prior to printing or saving. Elements in the web page can be edited, formatted, hidden or deleted. Unwanted content, such as adverts and sidebars, can easily be removed.

Rated 3 out of 5 stars (133)
1,768 weekly downloads

Stylus Compatible with Firefox 57+

Redesign the web with Stylus, a user styles manager. Stylus allows you to easily install themes and skins for many popular sites.

Rated 4 out of 5 stars (159)
1,582 weekly downloads

Empty Cache Button Compatible with Firefox 57+

Cache clearing made easy. One click.

Rated 4 out of 5 stars (126)
1,479 weekly downloads

Font Finder (revived) Compatible with Firefox 57+ Featured

Get all CSS styles of selected text

Rated 5 out of 5 stars (44)
1,149 weekly downloads

Mozilla Archive Format, with MHT and Faithful Save Requires Restart

— Open web pages saved with Internet Explorer or other browsers (MHT)
— Save many tabs, video and audio reliably, in a single ZIP file (MAFF)
— Return to the original site you saved a page from, and more!

Rated 5 out of 5 stars (348)
1,025 weekly downloads

QuickJava (For FF Versions 56 AND BELOW only) Requires Restart

Obsolete as of FF 57, will leave here for users who have not "upgraded" to 57.
Allows quick enable and disable of Javascript, Cookies, Image Animations, Flash, Silverlight, Images, Stylesheets and Proxy from the Toolbar.

Rated 5 out of 5 stars (204)
981 weekly downloads

Policy Control - JavaScript and Flash blocker Compatible with Firefox 57+

This extension helps you quickly disable and enable different types of resources such as JavaScript, CSS, and Media. The extension can be used to increase privacy as well as saving bandwidth by blocking unwanted contents.

Rated 4 out of 5 stars (29)
742 weekly downloads

Dark Purple Youtube Theme Compatible with Firefox 57+

Makes the layout of Youtube Dark Purple while retaining the original feel.

Rated 5 out of 5 stars (45)
475 weekly downloads

Custom Style Script (Inject desired CSS or JS) Compatible with Firefox 57+

Add Custom JavaScript Codes or Styles to any Page.

Rated 4 out of 5 stars (18)
393 weekly downloads

Firefinder for Firebug Requires Restart

Finds HTML elements matching chosen CSS selector(s) or XPath expression

Rated 3 out of 5 stars (28)
312 weekly downloads

Live editor for CSS and LESS Compatible with Firefox 57+

Live preview of CSS/LESS code with an in-page editor. Autocomplete, convert LESS to CSS, beautify, minify, CSS reloader, linter, ...

Rated 5 out of 5 stars (13)
240 weekly downloads

Dark TwitchTV Compatible with Firefox 57+

A Dark Theme for TwitchTV

Rated 4 out of 5 stars (13)
209 weekly downloads

Live Reload Compatible with Firefox 57+

Addon for web devs. Monitor included JS, CSS and/or HTML in frames and automatically reload the host page when a change is detected in the included source. Supports inline reloading of stylesheets and frames without reloading the host page.

Rated 4 out of 5 stars (8)
198 weekly downloads

Customize Your Web Requires Restart

Customize Your Web (CYW) let's you customize your favorite websites with just a few clicks. What Greasemonkey is for developers is CYW for non-developers. You can remove/rearrange /modify elements, add keyboard shortcuts and do many other things.

Rated 4 out of 5 stars (77)
196 weekly downloads

Font Finder Requires Restart

FontFinder is created for designers, developers and typographers. It allows a user to analyze the font information of any element on a page, copy any piece(s) of that information to the clipboard, and perform inline replacements to test new layouts.

Rated 4 out of 5 stars (78)
177 weekly downloads

Font Inspector (WebExtension) Compatible with Firefox 57+

Click on any element to get the font info in a page popup

Rated 2 out of 5 stars (5)
162 weekly downloads