Download Flagfox for Firefox. Displays a country flag depicting the location of the current website's server and provides a multitude of tools such as site safety checks, whois, translation, similar sites, validation, URL shortening, and more...
https://addons.mozilla.org/firefox/addon/flagfox/
Download Video DownloadHelper for Firefox. The easy way to download and convert Web videos from hundreds of YouTube-like sites.
https://addons.mozilla.org/firefox/addon/video-downloadhelper
Download Dark Reader for Firefox. Dark mode for every website. Take care of your eyes, use dark theme for night and daily browsing.
https://addons.mozilla.org/firefox/addon/darkreader
Download Cookie AutoDelete for Firefox. Control your cookies! This WebExtension is inspired by Self Destructing Cookies. When a tab closes, any cookies not being used are automatically deleted. Keep the ones you trust (forever/until restart) while deleting the rest. Containers Supported
https://addons.mozilla.org/firefox/addon/cookie-autodelete
Download NoScript Security Suite for Firefox. The best security you can get in a web browser! Allow potentially malicious web content to run only from sites you trust. Protect yourself against XSS other web security exploits.
https://addons.mozilla.org/firefox/addon/noscript
Download DuckDuckGo Privacy Essentials for Firefox. Simple and seamless privacy protection for your browser: tracker blocking, cookie protection, DuckDuckGo private search, email protection, HTTPS upgrading, and much more.
https://addons.mozilla.org/firefox/addon/duckduckgo-for-firefox
Download uBlock Origin for Firefox. Finally, an efficient wide-spectrum content blocker. Easy on CPU and memory.
https://addons.mozilla.org/firefox/addon/ublock-origin