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Pretend that all browser windows are active by spoofing the visibility state event

Pixel Perfect Pro helps developers and designers to make best sites and more high quality products.

On-page SEO report, broken link checker, redirect tracer, and country changer for SERP in one add-on. If you have an active account at ahrefs.com, you will also get instant access to Page, Domain, and keyword metrics via your Ahrefs account.

- Monitor live requests - Edit headers on live requests - Cancel live requests - Redirect live requests Click the blue cloud in the toolbar to start tampering. When you're done, click it again to stop.

Instead of completely blocking canvas fingerprinting, Canvas Defender add-on creates a unique and persistent noise that hides your real canvas fingerprint. This add-on protects you while browsing both in normal and private mode.

A browser extension that lets you display the basic typographic styles of a text by right-clicking it.

Download login-protected files from the command line using curl, wget or aria2.

Provides better experience for using the Hoppscotch web app. Haven't used Hoppscotch ? It's an amazing quick API Request Builder. Try it at https://hoppscotch.io/ !!!

Displays a sidebar that lets you to forge HTTP requests. Press Ctrl+Shift+Y to show the sidebar and make your own HTTP request. You can choose the method GET, HEAD, POST, OPTIONS, PUT DELETE and the body data to send. Response in the main window.

Allows to visualize the electricity consumption and greenhouse gases (GHG) emissions that your Internet browsing leads to.

Adds a page action to pretty-print JSON. Unlike similar extensions, this simply pretty-prints it. It doesn't add any kind of viewer, colors, or collapsing. If you want this to work as expected, disable devtools.jsonview.enabled in about:config.

An indicator showing the HTTP version used to load the page in the address bar.

Construct custom Web Socket requests and handle responses to directly test your Web Socket services.

select some text, and base64 decode it.

Log from PHP to a devtools panel.

Edit cookies related to the current page and all its sub-frames right from a popup

The leading browser extension for analytics and marketing technology testing and debugging

Force Copy professionally circumvents limitations pertaining to Web Copying, Keyboard Usage, and Right-click Functionalities, facilitating an unhindered browsing experience. Open Source Project: https://github.com/WindrunnerMax/TKScript.

Measure page elements size in pixel with an easy-to-use ruler.

Use ChatGPT in sidebar. You won't need to waste time switching between ChatGPT and other tabs.

This add-on displays the result of evaluating XPath expression or CSS selector.