Overlay Remover Auto
Automatically close detected overlays / popups on enabled websites (on page load and/or on timed intervals)
848 users
Startpage Search — Dark Theme
Adds Startpage.com as a search engine, using the Dark theme.Adds Startpage.com as a search engine, using the Dark theme.
844 users
Open in Private Mode
Open the active tab in a private window via toolbar button or context-menu.
833 users
Plug
Plug 🔌 the Internet Computer (IC) crypto wallet browser extension and identity provider, An easy-to-use browser extension that allows you to hold, send, and manage IC tokens & NFTs with just one Principal ID and log into IC apps! 🔥
830 users
Ecosia Search (Unofficial)
Unofficial, open-source web extension that adds https://ecosia.org/ as a search engine to the Firefox browser. Please review Ecosia's privacy policy: https://info.ecosia.org/privacy
826 users
Content Security Policy (CSP) Generator
Automatic Content Security Policy (CSP) Generator. Generate a Content Security Policy header in minutes on any website. Built by https://csper.io
825 users
Sputnik
Open Source Intelligence (OSINT) web extension for IPs, Domains, File Hashes, and URLs
813 users
Gener8
Be rewarded for your data while browsing free from intrusive ads and annoying cookie banners.
808 users
Moesif Origin & CORS Changer
The most popular and feature rich CORS tool on Chrome (over 100K weekly active users) is rebuilt for Firefox with more features. This plugin allows you to send cross-domain requests. You can also override Request Origin and CORS headers.
800 users
Burner Emails: Easy, Fast, Disposable Emails
Detects email fields as you browse and fills them with a burner email address that forwards to your personal email address
792 users
Referer Modifier
Modify the Referer header of HTTP requests: Remove, shorten, replace with custom data, or keep the Referer depending on the target domain.
781 users
AdBlox - Ad Blocker
Easy, free, full-featured ad blocker: Block ads on YouTube, Facebook, Twitch, and m for a seamless browsing experience.
779 users
Certainly Something (Certificate Viewer)
Certainly Something is an advanced digital certificate viewer for with an easy-to-use interface that works on both desktop and mobile devices.
777 users
IP Geolocator
Shows detailed information about your IPv4 & IPv6 address and their location.
776 users
Joshi Koukousei Captcha Service
Tired of solving captchas all day? Don't want carpal tunnel syndrome young? Have dyslexia? Then Joshi Koukousei's Captcha Service is here for you! Using a small machine learning model, JKCS saves you time by solving 4chan captchas for you!
774 users
Blockchain DNS
Resolves domains from decentralized blockchain name systems using BDNS public web API. Currently supported TLDs are: .bit (Namecoin), .lib .bazar .coin .emc (Emercoin).
770 users
Link Virus Check - Security Plus
Security Plus is a browser extension that provides free checking of urls for viruses. It uses up to 64 different antivirus products and scan engines to check for viruses that the user's own antivirus solution may have missed.
767 users
CoinBlock
With the rising popularity of coinminers in js form, this extension attempts to block those hosted on coin-hive, and cryptoloot. A multiple entry block list is planned.
760 users
