Get international weather updates (via AccuWeather.com) displayed right in Firefox with this highly customizable extension.
Draw a ruler across any webpage to check the width, height, or alignment of page elements in pixels.
Strictly block all popup requests from any website by default. A notification window is opened to allow you accept, reject, open the popup in background page, or redirect the current page to popup address
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...
Automatically learns to block invisible trackers.
Ghostery is a powerful privacy extension. Block ads, stop trackers and speed up websites.
Encrypt the web! HTTPS Everywhere is a Firefox extension to protect your communications by enabling HTTPS encryption automatically on sites that are known to support it, even when you type URLs or follow links that omit the https: prefix.
Privacy, simplified. Our add-on provides the privacy essentials you need to seamlessly take control of your personal information, no matter where the internet takes you: tracker blocking, smarter encryption, DuckDuckGo private search, and more.
LastPass, an award-winning password manager, saves your passwords and gives you secure access from every computer and mobile device.
A secure and free password manager for all of your devices.
RoboForm, the #1 ranked Password Manager makes your life easier by remembering passwords and logging you into websites automatically
Offline P2P encrypted password manager & authenticator. Auto-fill Two-Factor Authentication (2FA) tokens.
The easy way to download and convert Web videos from hundreds of YouTube-like sites.
A simple extension for superfast and easy YouTube downloads in FLV, 3GP, MP3, MP4, 720p, and 1080p formats.
Download Video and Flash - HD Download is a great download helper tool that lets you download video and Flash games very easily. Download from YouTube, Facebook, Dailymotion, Vimeo and more. Download and enjoy! Download now!
Cast videos and music from more than 50 sites (YouTube, Twitch, Vimeo, SoundCloud, torrents, ...) to Kodi with context menu and remote control.