Download An Old Version Of Firefox

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This wikiHow teaches yous how to return to an older version of the Firefox web browser on your reckoner. Mozilla, the system that develops Firefox, offers downloads of all previous Windows and macOS versions for testing purposes—they exercise not, notwithstanding, recommend downgrading, as older version usually have unpatched security holes. Mozilla doesn't offering older versions of the Firefox mobile app for download.

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1. 1

   Observe out which version of Firefox you have now. If you're having trouble with Firefox and want to get back to the version you had before, yous'll first demand to figure out which version you have now. To notice your version:

   • Open up Firefox.
   • Click the carte du jour with three horizontal lines at the top-right corner.
   • Click Aid.
   • Click Well-nigh Firefox.
   • The version number appears below "Firefox Browser" in the window (east.g., 86.0 64-scrap).
   • Write down the full version number and then yous don't forget it.

2. two

   Advertizing

3. 3

   Select the Firefox version y'all want to install.

   • For case, if yous want to downgrade to version 86, you'd click 86.0.
   • Versions with a lowercase "b" in the name are beta versions.

4. 4

   Click the folder for your operating system. The folders here don't always have the about straightforward names, so use these tips to help you make the right selection:

   • Mac: This one is really straight-forwards—click the folder chosen mac.
   • Windows: Look for "win32/" (32-bit Windows) or "win64/" (64-bit Windows) in the link text. Make sure you choose the aforementioned bit number 32 or 64 you saw in your version number.

5. 5

   Click the linguistic communication folder. The listing on this page is abbreviated regional languages.

   • For case, if you lot speak English and are in the U.s.a., yous would click the en-Usa folder.

6. 6

   Click the download link. If you're using Windows, choose the link that ends with ".exe." If you lot have a Mac, choose the one that ends with ."dmg." This downloads the installer to your computer.

   • Depending on your browser settings, you may be prompted to confirm the download or select a location to save to before the download will begin.

7. vii

   Uninstall the current version of Firefox. Here's how:

   • Windows
     • Press Windows cardinal + S to open the search bar and blazon add together remove.
     • Click Add or remove programs.
     • Scroll down and select Mozilla Firefox.
     • Click Uninstall and follow the on-screen instructions.
   • Mac
     • Open Finder and click the Applications folder.
     • Drag the Firefox icon to Trash.

8. 8

   Disconnect from the internet. Firefox includes a security feature that installs the latest security updates in the background. To forestall Firefox from automatically updating itself to the newest version, yous'll need to disconnect from the net before installing the downgraded version. You tin simply disable your Wi-Fi or remove the Ethernet cablevision from your computer after the installation file is finished downloading.

9. 9

   Double-click the Firefox setup file to Install Firefox. You will find it in your default Downloads folder. Follow the on-screen instructions to install Firefox. When it's finished installing, it volition launch for the get-go time.

   • On a MacOS Sierra and later, you may have to manually permit the installation before standing.

10. ten

    Create a new profile. As of version 67, Firefox at present has downgrade protection, which requires you to create a separate contour from the 1 you used in the about current version.^[2] You just won't exist able to use them in the downgraded version. Click Create New Profile when prompted and follow the on-screen instructions to set up a new profile.

    • Don't worry, you won't lose your bookmarks or other contour info, which will still be available once y'all upgrade to the latest version.

11. 11

    Disable automatic updates every bit soon as Firefox launches. Firefox is gear up up to update automatically in the background and so you always accept the latest security patches. If you want to go along your downgraded version, you will need to turn this feature off. Here's how:

    • Click the iii-line menu at the meridian-right corner and select Options.
    • Whorl down to the "Firefox Updates" section.
    • Select Bank check for updates only let you choose to install them.
    • Remove the checkmark from "Use a background service to install updates."

12. 12

    Reconnect to the internet. Now that you've downgraded to an older version and disabled automated updates, you'll exist able to use your downgraded version as long as you'd like.

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Add New Question

• Question

  I play on a game site and some of the games are still in Java. Firefox (prior to v42) was the only browser that worked. Tonight information technology upgraded itself. I did what the article said, just still tin't play. What now?

  

  Take you considered upgrading your Java version? In many cases, the reason certain browsers work is due to its compatibility with your Coffee version. You should exist able to update it in "System Updates" on your computer.

• Question

  Installed 62.0 ESR, disabled browser updates, added some add-ons, closed browser. Relaunched browser which proceeded to automatically update 62.0 ESR to the dreadful Quantum browser. Any workaround?

  

  Firefox 62 is Quantum. Everything from 57 on upward is the Breakthrough codebase. Likewise, 62.0 is non an ESR release. That was 52.

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• Older Firefox versions often contain unpatched vulnerabilities which tin be exploited past attackers to infect your system with malware and steal your personal information. Be careful when using an older Firefox version.

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About This Article

Article Summary Ten

ane. Go to https://ftp.mozilla.org/pub/firefox/releases/.
2. Download the installer for the version you want.
3. Uninstall the current version.
four. Disconnect from the internet.
five. Install the downgraded version.
6. Create a new profile.
vii. Disable automated updates.
8. Reconnect to the internet.

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Source: https://www.wikihow.com/Downgrade-Firefox

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