Firefox add-on with keyword - exist

Parmenides......."what is-is". All conditioned things are in a constant state of flux.

Some sites may not work with Firefox for Android video background play feature. This add-on provides a quick fix by blocking the Page Visibility API and the Fullscreen API.

Click on any image on the web to search for it on TinEye. Recommended by Firefox! Discover where an image came from, see how it is being used, check if modified versions exist or locate high resolution versions. Made with love by the TinEye team.

Save an entire web page—including images and styling—as a single HTML file.

Avoid opening duplicates. Moves existing tab of clicked links to next tab.

At home, at work, or on the go, Bitwarden easily secures all your passwords, passkeys, and sensitive information.

Palestine Resist Exist: Stronger than the bombs, Keep resisting, Still exixsting.. Free Palestine, a revulution till victory!

Go to the pinned Google Calendar tab. If it doesn't exist, it's created.

This add-on allows to replace or update an existing bookmark title and/or URL with a minimal click count..

Save and restore the state of windows and tabs. It also supports automatic saving and cloud sync.

Palestine exists

Go to the pinned Google Keep tab. If it doesn't exist, it's created.

Go to the pinned Google Drive tab. If it doesn't exist, it's created.

Go to the pinned GMail tab. If it doesn't exist, it's created. It also alerts you the unread emails.

Access Free Patent Examiner Statistics directly on the USPTO’s Private PAIR and Patent Center Websites

Go to the pinned Telegram tab. If it doesn't exist, it's created.

Exist Trace VK Band

Simple and seamless privacy protection for your browser: tracker blocking, cookie protection, DuckDuckGo private search, email protection, HTTPS upgrading, and much more.

Go to the pinned Messenger tab. If it doesn't exist, it's created. This is an independent addon not affiliated with or sponsored by Messenger or Meta

Create animated GIFs from existing video file(s) or images!

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This add-on allows discarding (freezing) tabs via right-click. Discarding, or freezing, tabs removes them from memory and stops all background activity. The tab will continue to exist and everything will reload, if you click it.

Go to the pinned Google Contacts tab. If it doesn't exist, it's created.

Animated persona created from a photo montage of pictures of Seattle posters and graffiti.

Open url or page in private window. Will open in new tab if private window already exists.