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Submits the HTML of the current tab to the W3C Validator. Source submitted is from a GET request not the DOM. Written out of the need to easily validate protected directories. Not advisable for use on pages with sensitive information.

Step right up to BarnumPT—your ultimate digital marketing ringmaster! Perfect for ClickFunnels users and savvy marketers.

View & Debug LTI launches

Globally highlights the currently focused or hovered input field, button or action item. This helps visually navigating and observing the structure of a website.

Webpage Data Extraction Tool

Adds story points, post-estimation points and card ID to Trello

Interacts with Visual Studio's Browser Link feature

Communicate with Cathay United Bank GMBTOOL Native Client to check users identity.

3G Proxy provides you with access to mobile internet (3G/4G) which is offered by mobile carriers worldwide. Our SIM cards are directly hosted in the country where you would like to test your product.

Microsoft Copilot, ChatGPT, and Google Gemini is now available as a sidebar for Firefox

Simple extension that toggles a red outline around all elements in a page on/off, useful for CSS debugging.

Quickly see your notifications in a popup without leaving the current page

This extension allows users to uncheck radio buttons! Right-click any radio button to uncheck.

Detect who is hosting any site on the web with the help of Who-Hosts-This.com

Remove colors from a web page that it becomes black and white, or sepia.

Easy to download high-quality cosplay photo without login.

List a link of reactions on a github issue and pull request page

Quick access to WhatsApp Web from your browser with additional features.