Dark Night Mode
It is a universal night mode for the entire Internet. It uses a special algorithm to automatically change the colors of the websites you visit into dark mode so that you can browse without straining your eyes, especially at night.
1,831 users
SEO Analysis & Website Review by WooRank
Instant SEO analysis and website reviews for SEO, mobile, usability and social media. The freshest data when and where you want it.
1,823 users
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.
1,808 users
PixelZoomer
PixelZoomer takes a screenshot of the current website and provides various tools for pixel analysis. You can zoom into websites (up to 3200%), measure distances and pick colors with an eye dropper.
1,786 users
View Page Source (Mobile)
Adds the ability to open the page source in a new tab via button (Desktop) or menu (Firefox for Android).
1,786 users
Enable Selection and Copy
Force enable text selection and copy. (mod by Gary) This is modded from another well-known addon and makes it function on local files also. Nothing else changed.
1,771 users
Clear Site Cookies
Clear the cookies of the current website, with cookie preview and precise cookie selection.
1,760 users
Image saver
Save any images in page directly from context menu, this includes svg elements, css background images and direct child images.
1,749 users
Xdebug-ext
Adds a simple button to inject a Xdebug cookie. Compatible with Firefox 57+ (Quantum). It is a port of "The easiest Xdebug" Addon by Nikita Nikitin, which is not compatible with WebExtensions.
1,746 users
Extended Color Management
Ever wish that Firefox didn't use color management when viewing images or video? Turn it off easily with this add-on.
1,743 users
Asciidoctor.js Live Preview
Render AsciiDoc (.ad, .adoc, .asciidoc) as HTML inside Firefox!
1,730 users
Youtube Play All
Adds a 'Play All' button to YouTube, allowing video playback in Latest, Popular, or Oldest order.
1,705 users
APK Downloader
APK Downloader Direct download apps of the Google apps store without using Google Play.
1,700 users
Amadeus Digital DNA Extension
The Amadeus Digital DNA Extension provides end-users the ability to authenticate on some dedicated Amadeus web applications with a second factor.
1,687 users
Remove Cookies Button
Toolbar button for removing cookies, local storage and session storage from the current tab. The button displays a number of deleted cookies (shown in the screenshot). In case of deletion problems button displays word "Error" and shows notification.
1,683 users
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.
1,651 users
GreenIT-Analysis
GreenIT-Analysis : Measure EcoIndex(www.ecoindex.fr) and check ecometer best practice (www.ecometer.org)
1,641 users
Load Time
Adds an icon to the address bar to provide load time information of the current page.
1,635 users
