ProxyControl
Manage setting of connect of proxy in your browser so quickly and so easily as you want.
986 users
TrashMail.com
Create free disposable email addresses with MITM protection. Paste them directly in forms to protect yourself from spam. Features Ed25519 signature verification and TLS certificate checks to detect interception by corporate proxies or attackers.
981 users
CustomCSS Injector
- Apply any CSS rules for any websites, including iframes. - Whitelist and Blacklist functionality - Apply CSS rules to specific URLs, Domains or Globally - Syntax highlighting & line numbers - Update without page refresh
978 users
IEability - Open in IE
Runs Internet Explorer (IE) in Firefox with IE Tab mode, supporting legacy websites, Java, ActiveX, Flash and enterprise systems.
962 users
SQLite Viewer
A tabular SQLite viewer and editor that supports opening of multiple databases
958 users
PageSpeed Insights
Open PageSpeed Insights to analyze the web page on the current opened tab.
957 users
React Context DevTool
React Context DevTool is a debugging tool for React Context and useReducer API.
957 users
Quick Accept-Language Switcher
Provides a quick way of changing the HTTP Accept-Language header so you can view and test websites with a different locale.
953 users
Userchrome Toggle Extended
This extension allows you to toggle userchrome.css styles on-the-fly with buttons and hotkeys. You'll be able to switch up to six styles
952 users
show-my-ip
This add-on allows you to view your IP address from your browser without having to navigate to sites like https://www.whatismyip.com/ Furthermore, as this add-on is open source, you don't need to be worried about your privacy.
949 users
Resize Window & Viewport
Resize browser window or viewport to desired screen widths. Firefox's Responsive Design Mode (Ctrl + Shift + M) is great for mobile devices emulation.
939 users
Color Picker
A simple color picker extension. Easily pick any color on the screen, view history of picked colors, and copy or clear them with a single click.
925 users
OpenLorem
Lorem Ipsum filler text for web developers. Uses Loripsum, Bacon Ipsum and Dino Ipsum APIs to retrieve customized text. Insert into fields using context menu. Source code is available on Github.
921 users
Simple Link Checker
Redirect Link Checker will check all links on your page to find broken and redirect links
917 users
Slither.io Mods, Zoom, Unlock Skins, Bots
The Best Mod and Extension for Slither.io! Mod Zoom, Play with Friends, Skins, Custom Skins, Bots
909 users
OWASP Penetration Testing Kit
Penetration Testing Kit is an extension for application security practitioners, penetration testers, and red teams. Penetration Testing Kit is an extension for application security practitioners, penetration testers, and red teams.
906 users
Block Yourself from Analytics
Block your Google Analytics™ activity for the websites you own, no more false stats.
882 users
IP Whois
View info about IP, DNS records, SSL, country flag, domain whois, location, stats and more of any website.
882 users
SEO Inspector
SEO Inspector scans the active page and applies a set of customizable rules to its contents. The results of the scan are displayed on a simple, elegant interface for manual inspection.
878 users
HTMaiL: Insert HTML into email message
This extension will allow you to easily insert HTML code into the body of the message from your favorite webmail service: Gmail, Outlook, and Yahoo Mail.
875 users
Open With Photoshop
Open With Photoshop is a new companion for web and graphic designers to open up any web image with Adobe Photoshop via a single and quick mouse click.
874 users
