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Open PageSpeed Insights to analyze the web page on the current opened tab.

Speed up your SEO right in your browser: See the key SEO metrics, popularity trends, competitor's keywords, backlinks and on-page SEO insights of any domain or URL. Have the power of Mangools SEO package any time you need.

Replace the file/folder icons on github file browsers with icons representing the file's type and which tool it is used by.

Save HTML Tables, CSS Pseudo/DIV Tables or Lists (UL/OL) as a comma seperated values (CSV) file which can be opened with any spreadsheet processor (e.g. excel, libreoffice-calc,gnumeric) for further processing and conversion (e.g. to xls or ods)

This extension blocks ads on websites to improve user experience.

Quickly delete your browser history, cookies, cache, downloads, forms, and passwords

Quick & easy icon picker

Nyan Cat Progress Bar for YouTube™ ~~ [Animated] ~~

Adjusts the website's color scheme, so that all websites are dark by default, if they have a special design for that. It makes websites look dark even with a light system style.

A Chrome extension that allows you to upload large files in chunks.

Generates a Lighthouse Report without needing to use Chrome or the Lighthouse CLI

Open With Photoshop is a new companion for web and graphic designers to open up any web image with Adobe Photoshop via a single and quick mouse click.

A tabular SQLite viewer and editor that supports opening of multiple databases

Get cookies.txt, NEVER send information outside with open-source

Inject charts in your private leaderboard page for Advent of Code - see https://github.com/jeroenheijmans/advent-of-code-charts

Displays page load time in the toolbar

Display JSON objects by transforming them into Syntax editable highlighted HTML

An extension for controlling requests.

Case converter, image cropper, CSS triangle generator, base64 encoder/decoder, HEX to RGBA converter, YouTube thumbnail grabber, QR code generator and many more online web tools

Copy/Paste all fields from a web form (with hotkey or contextual menus)

Lets you Bypass Quora Login. A Quora Blog shared this trick/hack so that knowledge can be shared without restriction. If you are logged in, it won't do anything. But say you are not logged in (or using private window), then this comes handy.

ORGanizer - The best Salesforce Extension ever