View source code of Firefox add-ons and Chrome extensions (crx/nex/xpi) from addons.mozilla.org, the Chrome Webstore and elsewhere.

Signer.Digital - Digital Signing of eReturns, PDF Signing and Web User Auth, RSA Encryption/Decryption. JULY 2022 - Added support for ICP-Brazil and ITIDA Egypt.

Hides scrollbars in Firefox v60+
* not a legacy extension!
* no extra setup required just install!
* works on all sites!
* easy to toggle on/off via the extension pop-out menu!

If you like this extension please donate:
paypal.me/qashto/5

Keep your Session Alive at any website and never get logged out. Forget the session timeout messages. Multi-Account Containers supported.

Print the current page you see with one single click. That for all kinds of photo printing, poster printing, business cards, etc.
Print today a web page, photo or business card with your own favorite Print button.

Live preview of CSS/Less/Sass code changes. Auto-save file, autocomplete, convert Less/Sass to CSS, beautify, minify, CSS reloader, linter, ...

A SEO tool to find broken (404) and redirected (301, 307, 308) links in all frames

The Best Mod and Extension for Slither.io! Mod Zoom, Play with Friends, Skins, Custom Skins, Bots

Provides a quick way of changing the HTTP Accept-Language header so you can view and test websites with a different locale.

Simple add-on that displays the current website IP address without a third party service. Converting the current tabs domain name to IPv4 & IPv6 via DNS lookup.

Tool for debugging Ember applications.

Displays negotiated SSL/TLS protocol version and additional security information in the address bar

Debug Flash/SWF/Flex files on the web. Edit properties and inspect elements on the fly. View log output inside the extension. Run AS3 code against the active SWF. Profile memory consumption and much much more...

I make clicks... for real. If you play idle/clicker games this one is for you. Just select a key in your keyboard and press it down for the mouse to left-click, and you can it pressed down for all the time you want.

Edit in Firefox the page displayed in any tab, with formatting tools.

User Script Manager with the support of Ace Stream technologies

ServiceNow Productivity tools. (Personal work, not affiliated to ServiceNow)

A tool for designers to measure screen dimensions

Cross Domain will help you to deal with cross domain - CORS problem. This is a small tool will helpful for web developer and related domain that face with cross domain issue.

Quick screenshot of full webpage with single click.

Get the page load times of any web page! app.telemetry Page Speed Monitor shows offset and duration of each step during the page load based on W3C navigation timing.

Provides ability to copy title and URL of selected tabs to the clipboard.

Copy document URL / link URL to clipboard as HTML, Markdown, BBCode, Textile, AsciiDoc, MediaWiki, Jira, reStructuredText, LaTeX, Text.

Delete cookies when browser is closed or once the tab is closed to prevent possible trackings (similar to Ove's Self-Destructing Cookies which is not compatible with FF57 anymore)

Open current page, link, or all tabs in the Microsoft Edge™ browser

Quickly resize the window to one of your favorite sizes

React Context DevTool is a debugging tool for React Context and useReducer API.

"View Background Image" in context menu.

A minimalist browser extension that generates QR codes from your current tab, allows you to edit the encoded content, copy QR code image to clipboard, or download as PNG or SVG files.

View the EXIF/IPTC/XMP metadata for images. WebExtensions port of the FxIF add-on.