Laboratory (Content Security Policy / CSP Toolkit)
Because good website security shouldn't only be available to mad scientists! Laboratory is a WebExtension that helps you generate a Content Security Policy (CSP) header for your website.
1,591 个用户
Siteimprove Accessibility Checker
Jumpstart your web accessibility efforts directly in Firefox. Is your web page accessible for everyone? Assess the accessibility of your web pages conveniently in Mozilla Firefox browser with the Siteimprove Accessibility Checker.
1,553 个用户
Xdebug-ext
Ajoute un simple bouton pour injecter un cookie Xdebug. Compatible avec Firefox 57+ (Quantum). Il s'agit d'un portage du module "The easiest Xdebug" par Nikita Nikitin, qui n'est pas compatible avec WebExtensions.
1,545 个用户
Print PDF
Print any Webpage to PDF. No server or third-party processing. Uses built-in Firefox converter.
1,539 个用户
Load Time
Adds an icon to the address bar to provide load time information of the current page.
1,524 个用户
Website IP
Simple add-on that displays the current website IP address without a third party service. Converting the current tabs domain name to IPv4 & IPv6 via DNS lookup.
1,519 个用户
FullPage Capture
Full-page screenshot to clipboard. No tracking, no servers a fully oss solution
1,513 个用户
Extension source viewer
View source code of Firefox add-ons and Chrome extensions (crx/nex/xpi) from addons.mozilla.org, the Chrome Webstore and elsewhere, with CRX Viewer (crxviewer).
1,505 个用户
Open Graph Preview
Shows approximately what users will see if this webpage is shared on websites that uses OG tags to display a preview. Let you detect if no Open Graph Tags are set on your webpage ! The shown preview is inspired from the Facebook one.
1,499 个用户
BugHerd: Visual Feedback & Bug Tracking Tool
Screenshots for the point and click bug tracker
1,490 个用户
tweak: mock and modify HTTP requests
tweak allows you to mock and modify HTTP requests without leaving the browser
1,485 个用户
DevTools Media Panel
DevTools panel that displays technical details about media elements and webrtc on the current page; intended primarily for web developers to understand media playback issues on their sites, and for users to provide more informative bug reports.
1,484 个用户
ClaudeCodeBrowser
ClaudeCodeBrowser enables AI-powered browser automation through the Claude Code CLI. It allows Claude to interact with web pages by taking screenshots, clicking elements, typing text, scrolling, and navigating - all controlled via a local MCP server.
1,473 个用户
HighlightAll
Automatically highlight and count all occurrences of a word by selecting it. Custom mode option provides multiple highlighting feature with customizable colors and can also display search markers beside the scrollbar.
1,450 个用户
Page Edit
Make any webpage into a content editable document and modify it via toolbar popup!
1,449 个用户
WP Theme Detector and Plugins Detector
Detects the theme and plugins used in WordPress and display information about them. For sites using wordpress an icon will appear - right hand side of the address bar.
1,429 个用户
Live editor for CSS, Less & Sass - Magic CSS
Live preview of CSS/Less/Sass code changes. Auto-save file, autocomplete, convert Less/Sass to CSS, beautify, minify, CSS reloader, linter, ...
1,426 个用户
Open in MS Edge™ Browser
Open current page, link, or all tabs in the Microsoft Edge™ browser
1,421 个用户
(Animated) Nyan Cat Progress Bar for YouTube™
Nyan Cat Progress Bar for YouTube™ ~~ [Animated] ~~
1,410 个用户
CSS Reloader
CSS Reloader is an extension that allows you to reload all the CSS of any site without you have to reload the page itself.
1,404 个用户
