Mozilla Firefox Plugins, Add-ons and extension Page 25 of 75

Browse 1,868 Mozilla Firefox Plugins, Add-ons and extension on AlternativeTo including popular Mozilla Firefox options.

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  1. This extension doesn't use artificial intelligence, you decide what to block. Hide "trolls" and other unwanted commenters on all YouTube watch pages.

    Cost / License

    Platforms

    • Mozilla Firefox
    De-Troll YouTube screenshot 1
  2. GetVid icon
     2 likes

    A cross browser extension to help people download videos from websites, including, HLS, DASH, Live Stream.

    Cost / License

    • Freemium
    • Proprietary

    Application type

    Platforms

    • Microsoft Edge
    • Google Chrome
    • Mozilla Firefox
    GetVid screenshot 1
    GetVid screenshot 1
    GetVid screenshot 2
    +4
    GetVid screenshot 3
    6 alternatives
  3. OpenRPA icon
     3 likes

    OpenRPA automates repetitive tasks performed by humans to cut costs, eliminate keying errors, speed up processes, and easily link applications together. These tasks can be converted into a business process and then automated.

    Cost / License

    Application type

    Platforms

    • Windows
    • Online
    • Microsoft Edge
    • Google Chrome
    • Python
    • AutoHotkey
    • JavaScript
    • Software as a Service (SaaS)
    • Mozilla Firefox
    OpenRPA screenshot 1
    OpenRPA screenshot 1
    14 alternatives
  4. Block Site icon
     2 likes

    This extension will block access to websites of your choosing. A master password controls all customization options, as well as access to any blocked site. It’s also possible to redirect navigation from one specific website to another.

    Cost / License

    Platforms

    • Google Chrome
    • Firefox
    • Microsoft Edge
    • Opera
    Block Site screenshot 1
    Block Site screenshot 1
    Block Site screenshot 2
    9 alternatives
  5. PackPack icon
     2 likes

    PackPack is an AI-driven bookmark management tool tailored for saving content from online resources like news and social media. It utilizes AI to clean and save content. With PackPack, transform the way you manage bookmarks and handle your collections more intelligently.

    Cost / License

    • Freemium
    • Proprietary

    Platforms

    • Online
    • Google Chrome
    • iPhone
    • iPad
    • Android
    • Android Tablet
    • Microsoft Edge
    • Mozilla Firefox
    PackPack screenshot 1
    PackPack screenshot 1
    PackPack screenshot 2
    +2
    PackPack screenshot 3
    54 alternatives
  6. Rain Alarm icon
     1 like

    Rain Alarm reliably warns you of rain or snow approaching your location using push notifications. Instead of predicting probabilities, we use real time data to warn you as soon as precipitation approaches you.

    Cost / License

    • Freemium
    • Proprietary

    Platforms

    • iPhone
    • iPad
    • Online
    • Android
    • Mozilla Firefox
    • Google Chrome
    Rain Alarm screenshot 1
    Rain Alarm screenshot 1
    Rain Alarm screenshot 2
    +9
    Rain Alarm screenshot 3
  7. Note Board icon
     16 likes

    Productivity app. Save information like a sticky notes. You can create notes with images, videos or whatever you want. Save pages to read later or capture any web content with the chrome or firefox extension. Share boards with your friends. Create public boards.

    Cost / License

    • Free
    • Proprietary

    Platforms

    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Google Chrome
    • Firefox
    Multiple boards: organize notes in boards, use textures to change the look of the board, move notes between boards.
    You can edit notes with a rich HTML editor.
    Create public boards
    230 alternatives
  8. Mindstone icon
     2 likes

    Save time by optimising your information diet.

    Cost / License

    • Free
    • Proprietary

    Platforms

    • Android
    • iPhone
    • iPad
    • Microsoft Edge
    • Internet Explorer
    • Google Chrome
    • Safari
    • Firefox
    Mindstone screenshot 1
    Mindstone screenshot 1
    Mindstone screenshot 2
    +4
    Mindstone screenshot 3
  9. GitSyncMarks icon
     2 likes

    Browser extension for bidirectional bookmark sync with GitHub. Per-file storage (one JSON file per bookmark), three-way merge, auto-sync, multiple profiles. Works on Chrome and Firefox. Add bookmarks via Git, CLI, or GitHub Actions. No server — syncs directly via the GitHub API.

    Cost / License

    • Free
    • Open Source (MIT)

    Platforms

    • Google Chrome
    • Mozilla Firefox
    • GitHub
    • GitLab
    • Git
    GitSyncMarks screenshot 1
    GitSyncMarks screenshot 1
    GitSyncMarks screenshot 2
    +5
    GitSyncMarks screenshot 3
    4 alternatives
  10. AdGuard VPN icon
     51 likes

    Disguising itself as regular traffic, this service hides your IP, encrypts data, supports 10 devices at once, and offers global server locations.

    Cost / License

    • Freemium
    • Proprietary

    Application types

    Platforms

    • Mac
    • Windows
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Microsoft Edge
    • Google Chrome
    • Android TV
    • Mozilla Firefox
    AdGuard VPN screenshot 1
    AdGuard VPN screenshot 1
    AdGuard VPN screenshot 2
    +4
    AdGuard VPN screenshot 3
    135 alternatives
  11. This add-on changes Firefox's theme automatically while you browse the web, matching the appearance of the current website you are viewing — just like how macOS Safari tints its tab bar.

    Cost / License

    • Free
    • Open Source (MIT)

    Platforms

    • Mozilla Firefox
    Adaptive Tab Bar Color screenshot 1
    Adaptive Tab Bar Color screenshot 1
    Adaptive Tab Bar Color screenshot 2
    +1
    Adaptive Tab Bar Color screenshot 3
  12. c0x0.com icon
     6 likes

    c0x0.com let you create anonymous, random and permament e-mail aliases that protect your privacy. Aliases can be attached to any existing e-mail address you already own. Support for custom domains and developer API. Create free account.

    Cost / License

    • Freemium
    • Proprietary

    Platforms

    • Online
    • Google Chrome
    • Firefox
    Main screen with list of aliases and Quick Issue button.
    c0x0.com screenshot 1
    c0x0.com screenshot 2
    +1
    c0x0.com screenshot 3
    33 alternatives
  13. Tinypaste icon
     10 likes

    Have you ever wanted to send an article or long conversation over IM or post to Twitter, only to have it be over the character limit? That's what TinyPaste is for. The Firefox addon lets you right click on any selected text to save it; you can also enter text into the...

    Cost / License

    • Free
    • Proprietary

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Firefox
    42 alternatives
  14. Sticky Password icon
     31 likes

    Sticky Password manager and form filler securely stores your passwords, automatically fills in login account fields for programs and websites. This product contains also strong password generator.

    Cost / License

    • Freemium
    • Proprietary

    Application type

    Platforms

    • Mac
    • Windows
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Kindle Fire
    • Microsoft Edge
    • Google Chrome
    • Mozilla Firefox
    Sticky Password screenshot 1
    Sticky Password screenshot 1
    Sticky Password screenshot 2
    +1
    Sticky Password screenshot 3
    151 alternatives
  15. With the Firefox Extension "Add to Search Bar" you can add the search functionality of ANY page to the search box with 3 clicks (much quicker than with the extension Mycroft Project). In combination with the extension "Organize Search Engines" you keep good...

    Cost / License

    • Free
    • Open Source

    Platforms

    • Mac
    • Windows
    • Linux
    • Firefox
    1st of only 3 clicks to add this page to the Firefox Search Bar
    After 3rd Click: a new Search Engine in the Firefox Search Bar
    2 alternatives
  16. An extension that uses Google's Gemini AI to summarize web pages and translate them into multiple languages. It helps students, professionals, and language learners quickly understand content.

    Cost / License

    • Free
    • Open Source (MIT)

    Platforms

    • Mozilla Firefox
    • Google Chrome
    • Microsoft Edge
    Summarize and Translate with Gemini screenshot 1
    Summarize and Translate with Gemini screenshot 1
    Summarize and Translate with Gemini screenshot 2
  17. CookieBlock icon
     4 likes

    CookieBlock is a browser extension that allows you to automatically remove cookies that do not respect your privacy. Through the use of advanced machine-learning technology, it categorizes cookies into four distinct purposes.

    Cost / License

    • Free
    • Open Source (MIT)

    Application type

    Platforms

    • Google Chrome
    • Opera
    • Mozilla Firefox
    CookieBlock screenshot 1
    CookieBlock screenshot 1
    20 alternatives
  18. Linksort icon
     1 like

    Linksort is a personal knowledge management and bookmarking tool designed to make saving and organizing links effortless. It serves as a privacy-focused, open-source alternative to services like Pocket.

    Cost / License

    • Free
    • Proprietary

    Platforms

    • Online
    • Google Chrome
    • Software as a Service (SaaS)
    • Docker
    • Mozilla Firefox
    • Self-Hosted
    Linksort screenshot 1
    Linksort screenshot 1
    Linksort screenshot 2
    +1
    Linksort screenshot 3
    4 alternatives
  19. Squadrats icon
     1 like

    Have a higher purpose in all your rides and hikes. Make them exciting by collecting squadrats everywhere you go.

    Cost / License

    • Free
    • Proprietary

    Application types

    Platforms

    • Online
    • Google Chrome
    • Mozilla Firefox
    Squadrats screenshot 1
    Squadrats screenshot 1
    Squadrats: Squadrats are a mile by a mile squarish items on the map. Your mission is to go out and claim them.
    +3
    Squadratinhos: Micro size, macro fun. Don't have all day for a long trip? No problem. Chase these tiny squadrats on your way to work.
    2 alternatives