JavaScript Toggle On and Off (WebExtension)
Toggle JavaScript engine on and off the easy way
18 720 utilizadores
Font Finder (revived)
An easy-to-use font inspector to get CSS styles of the selected element
17 607 utilizadores
Emoji Keyboard - Emojis For Firefox
A free extension of the web tool https://coolsymbol.com/emojis/emoji-for-copy-and-paste.html. It helps input emoji in the web browser with an extensive search functionality.
16 333 utilizadores
WAVE Accessibility Extension
Evaluate web accessibility within the Firefox browser. When activated, the WAVE extension injects icons and indicators into your page to give feedback about accessibility and to facilitate manual evaluation.
16 063 utilizadores
IP Address and Domain Information
The Ultimate online investigation tool! See detailed information about every IP Address, Domain Name and Provider.
15 241 utilizadores
JSON Lite
Fast JSON viewer - highlights, shows items count/size, handles large files
15 201 utilizadores
X-Forwarded-For Header
This extension allows you quickly to set the X-Forwarded-For HTTP Header
15 091 utilizadores
Colorpick Eyedropper
A simple eye-dropper & color-picker tool allowing you to select color values from webpages. You will need to enable the add-on bar Firefox menu->Options->Add-on Bar OR View->Toolbars->Add-on Bar Then refresh the page.
13 563 utilizadores
JetBrains Toolbox Extension
Clone and open projects from GitHub, GitLab, and Bitbucket in JetBrains IDEs right from your browser
13 475 utilizadores
ModHeader
Add and modify the HTTP request headers and response headers. ** Features ** - Add / modify / remove request headers and response headers - Multi-profile support - Filtering based on URL - Export, import, cloud backup
13 053 utilizadores
SQLite Manager
manage, edit, manipulate, plot and save one or multiple SQLite databases simultaneously
12 731 utilizadores
Ignore X-Frame-Options Header
Allows all sites to be loaded in iframes, despite X-Frame-Options header settings.
12 287 utilizadores
Html Validator
HTML Validator is a Mozilla extension that adds HTML validation inside Firefox, Mozilla. The number of errors of a HTML page is seen on the form of an icon For Firefox 56, use 0.974 (see all versions below). For Firefox 57, see Web Extensions.
12 253 utilizadores
Allow CORS: Access-Control-Allow-Origin
Easily add (Access-Control-Allow-Origin: *) rule to the response header.
12 196 utilizadores
HackBar
A HackBar for new firefox (Firefox Quantum). This addon is written in webextension and alternatives to the XUL version of original Hackbar. Press F12 to use HackBar
11 943 utilizadores
Modify Header Value
Add, modify or remove a header for any request on desired domains.
11 373 utilizadores
Allow Right-Click
Re-enable the possibility to use the context menu on sites that overrides it
11 263 utilizadores
