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Official Media Bias/Fact Check Extension version history - 10 versions

Official Media Bias/Fact Check Extension by Mike Crowe

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Official Media Bias/Fact Check Extension version history - 10 versions

  • Be careful with old versions! These versions are displayed for testing and reference purposes.You should always use the latest version of an add-on.

  • Latest version

    Version 4.2.0

    Released Mar 9, 2026 - 237.26 KB
    Works with firefox 142.0 and later
    What's New in 4.2

    - **Facebook feed annotation restored** — Bias badges now appear correctly on news posts in your Facebook feed and search results after Facebook's recent changes
    - **News Search button** — Search for more information about any news article directly from the bias badge; only shown for sites in the MBFC database (can be disabled in Options)
    - **Settings panel in popup** — Access collapse and visibility settings directly from the extension popup without opening the Options page
    - **Disable annotation bar** — New toggle to hide the bias annotation bar, with a quick-access config popup available in-page
    - **Real-time story updates** — Collapse and hide settings now take effect immediately without requiring a page reload
    - **Single-page app navigation** — Extension now correctly handles Facebook's dynamic navigation between pages
    - **Dark mode improvements** — Show Anyway button and News Search button now display correctly in dark mode
    - **Settings reliability** — Fixed settings not persisting across page loads and checkboxes not reflecting actual saved state
    - **Reduced page jank** — Significantly less layout shifting during initial Facebook page load
    - **Network resilience** — Automatic retry logic when source data fails to download
    - Performance, reliability, and code quality improvements

    Source code released under MIT License

    Download Firefox and get the extension
    Download file

  • Older versions

    Version 3.3.0

    Released Jan 23, 2022 - 299.94 KB
    Works with firefox 42.0 and later
    Release notes for version 3.3.0
    * Changing to browserAction to allow separate windows to have separate icons

    Source code released under MIT License

    Download file

  • Version 3.2.1

    Released Mar 18, 2021 - 295.82 KB
    Works with firefox 42.0 and later
    ## Release notes for version 3.2.1

    - Fixing finding subdomains such as nhk.or.jp/nhkworld/article..
    - Adding jest test frameworks

    Source code released under MIT License

    Download file

  • Version 3.2.0

    Released Mar 16, 2021 - 342.93 KB
    Works with firefox 42.0 and later
    ## Release notes for version 3.2

    - Improving Twitter article detection
    - Placing MBFC insert below image if we use the Twitter handle, and under the article if we use the article domain

    Source code released under MIT License

    Download file

  • Version 3.1.2

    Released Feb 17, 2021 - 342.59 KB
    Works with firefox 42.0 and later
    Updating icon in toolbar (take 2)

    Source code released under MIT License

    Download file

  • Version 3.1.1

    Released Feb 15, 2021 - 366.71 KB
    Works with firefox 42.0 and later
    Updating taskbar icon

    Source code released under MIT License

    Download file

  • Version 3.1.0

    Released Feb 8, 2021 - 366.71 KB
    Works with firefox 42.0 and later
    ## Release notes for version 3.1

    - Adding support for Credibility and Traffic
    - Fixing issue with hiding/showing a site permanently
    - Adding version number to config

    Source code released under MIT License

    Download file

  • Version 3.0.7

    Released Jan 15, 2021 - 260.81 KB
    Works with firefox 42.0 and later
    Updating icon

    Source code released under MIT License

    Download file

  • Version 3.0.6

    Released Nov 26, 2020 - 259.01 KB
    Works with firefox 42.0 and later
    v3.0.6: Fixing bugs
    - Factual rating missing
    - Extension needs to respect the story and not who posted it

    Source code released under MIT License

    Download file

  • Version 3.0.5

    Released Nov 25, 2020 - 258.95 KB
    Works with firefox 42.0 and later
    Adding support for Twitter dark mode

    Source code released under MIT License

    Download file