Request Interceptor
Intercept HTTP and HTTPS Requests. Add custom rules to modify request/response headers, block/redirect requests, modify query params. Example Usage: This extension can be used to block all ads having url (*/ad.x.com/*) by creating rules
787 users
Forget Button - Clean your Browser
Quickly delete your browser history, cookies, cache, downloads, forms, and passwords
785 users
InlineDisposition Reloaded
InlineDisposition Reloaded changes the disposition type of "Content-Disposition" response headers from "attachment" and "file" to "inline"
776 users
Auto Form
Copy/Paste all fields from a web form (with hotkey or contextual menus)
774 users
File Icon for GitHub, GitLab and Bitbucket
A Firefox Add-On which gives different filetypes different icons to GitHub, Gitlab, Bitbucket, gitea and gogs.
773 users
Proxy Checker
Check the quality of your proxies' IPs in bulk.
773 users
LocalStorage Editor
Add, edit, copy, remove, export and import local- and session- storage data
764 users
Quora Login Bypass
Lets you Bypass Quora Login. A Quora Blog shared this trick/hack so that knowledge can be shared without restriction. If you are logged in, it won't do anything. But say you are not logged in (or using private window), then this comes handy.
763 users
JPEG XL viewer
Displays JPEG XL images.
762 users
Bug Magnet
Right-click context menu to help with exploratory testing
761 users
RDS bar (seo: pr, dmoz, alexa, seomoz)
RDS Bar is a handy tool for quick analysis of website and page SEO indicators, designed for webmasters and optimizers. And also with a number of useful features for ordinary users.
760 users
Font Size Increase
Increase font size on any web page with one click.
757 users
GhostText
Use your text editor to write in your browser. Everything you type in the editor will be instantly updated in the browser (and vice versa).
757 users
JSON Beautifier & Editor
Display JSON objects by transforming them into Syntax editable highlighted HTML
755 users
Measure Everything
Element distance measurement tool.
751 users
RemoveYouTubePause
Remove the 'Video paused. Continue watching?' message on YouTube, allowing for a seamless video and audio experience without interruptions, on Firefox for both desktop and mobile.
749 users
Toggle Cache
Disables or enables the browser cache.
742 users
SiteAnalyzer SEO Tools
SiteAnalyzer SEO Tools is a browser extension providing a set of tools for analyzing SEO indicators of web site, technical audit (links, images, meta tags, content, indexing, etc.), URL analysis and correction of SEO optimization errors.
741 users
Favicon Detector
A simple way to detect website icons.
736 users
SQLite Reader
Easily browse, edit and manage SQLite database inside your browser!
736 users
Website and IP address blocker
Block Websites and IP address. Additional feature: Option to only block the homepage.
735 users
OdooTerminal
Terminal for Odoo (v11-18. CE & EE) Works on backend & frontend (with limitations) Press "CTRL + ," to toggle terminal or use the browser action icon.
734 users
Responsify viewer
A simple slider to check the responsivness of the website.
721 users
Live Reload — monitor and reload html, css, js
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.
714 users
Random password generator
A simple random password generator for Firefox browser
713 users