Text Link
Allows URI texts written in webpages to be loaded by double clicks.
16,030 users
My IP Hider VPN
My IP Hider VPN is number one tool for hiding your IP and unblocking any web site! If your Firefox version is less then 55 please install older My IP Hider VPN from "Version History" (https://goo.gl/7ZQQjZ)
15,725 users
RESTED
A REST client for the rest of us
15,463 users
Allow CORS: Access-Control-Allow-Origin
Easily add (Access-Control-Allow-Origin: *) rule to the response header.
14,818 users
JavaScript Toggle On and Off (WebExtension)
Toggle JavaScript engine on and off the easy way
14,242 users
JSON Lite
Fast JSON viewer - highlights, shows items count/size, handles large files
14,127 users
Yandex Search
Adds Yandex for search engines
13,470 users
Flag Cookies
A cookie, and browser storage manager with cow powers!
13,435 users
javascript
add javascript that will run on this domain. back up your scripts in the options area (shortcut there by clicking the "JS" letters in the bottom right)
13,325 users
Empty Cache Button
Cache clearing made easy. One click.
13,005 users
IP Address and Domain Information
The Ultimate online investigation tool! See detailed information about every IP Address, Domain Name and Provider.
12,410 users
Fake Filler
A form filler that fills all form inputs (textboxes, textareas, radio buttons, dropdowns, etc.) with fake and randomly generated data. The purpose of this extension is to help developers and testers test forms quickly and easily.
12,283 users
Header Editor
Manage browser's requests, include modify the request headers and response headers, redirect requests, cancel requests
12,252 users
polkadot{.js} extension
Manage your Polkadot accounts outside of dapps. Injects the accounts and allows signs transactions for a specific account.
11,327 users
Fonts Ninja
Speed up your design workflow!
11,171 users
Modify Header Value
Add, modify or remove a header for any request on desired domains.
11,161 users
RESTer
A REST client for almost any web service.
11,015 users
Proxy Toggle
Toggle between direct connection and a single proxy server via a toolbar icon.
10,856 users
Emoji Cheatsheet
A reference for the codes to generate Emojis on popular sites like GitHub or Basecamp and Unicode characters for Twitter and Facebook. Search Emojis by name or view recently selected items. Emojis are automatically copied to the clipboard.
10,328 users
SQLite Manager
manage, edit, manipulate, plot and save one or multiple SQLite databases simultaneously
10,154 users
HTTP Header Live
Displays the HTTP header. Edit it and send it.
10,045 users
Mobile emulator
Smartphone emulator on computer very realistic with several models to test mobile websites.
9,986 users
Angular DevTools
Angular DevTools extends Firefox DevTools adding Angular specific debugging and profiling capabilities.
9,473 users
Ignore X-Frame-Options Header
Allows all sites to be loaded in iframes, despite X-Frame-Options header settings.
9,248 users
HackBar V2
[No License, FOREVER FREE] A HackBar for new firefox (Firefox Quantum). This addon is written in webextension and alternatives to the XUL version of original Hackbar. You can ask request here: https://github.com/Hack-Free/HackBar
9,170 users