Join the Mozilla’s Test Days event from Dec 2–8 to test the new Firefox address bar on Firefox Beta 134 and get a chance to win Mozilla swag vouchers! 🎁

搜尋 Mozilla 技術支援網站

防止技術支援詐騙。我們絕對不會要求您撥打電話或發送簡訊,或是提供個人資訊。請用「回報濫用」功能回報可疑的行為。

了解更多

Firefox browser will not pull up at all. Crashes upon opening.

  • 1 回覆
  • 2 有這個問題
  • 1 次檢視
  • 最近回覆由 aiwwe0897

more options

The Firefox browser will crash immediately upon opening with a box message that says...

XULRunner

X .. Error: Platform version '121.0' is not compatible with minVersion>=120.0.1 maxVersion<=120.0.1

Please advise.

Beverly Wood msbev72@gmail.com

The Firefox browser will crash immediately upon opening with a box message that says... XULRunner X .. Error: Platform version '121.0' is not compatible with minVersion>=120.0.1 maxVersion<=120.0.1 Please advise. Beverly Wood msbev72@gmail.com
附加的畫面擷圖

所有回覆 (1)

more options

Hello,msbev72

Certain Firefox problems can be solved by performing a Clean reinstall. This means you remove your Firefox program files and then reinstall Firefox. This process does not remove your Firefox profile data (such as bookmarks and passwords), since that information is stored in a different location.

To do a clean reinstall of Firefox, please follow these steps: Note: You might want to print these steps or view them in another browser.

  1. Download the latest Desktop version of Firefox from mozilla.org (or choose the download for your operating system and language from this page) and save the setup file to your computer.
  2. After the download finishes, close Firefox.
    • Windows: Click the Firefox menu Fx57Menu, then click "Exit".
    • Mac: Click the Firefox menu at the top of the screen, then click "Quit Firefox".
    • Linux: Click the Firefox menu Fx57Menu, then click "Quit".
  3. Delete the Firefox installation folder, which is located in one of these locations, by default:
    • Windows: (Note: Check both folders.)
      • C:\Program Files\Mozilla Firefox
      • C:\Program Files (x86)\Mozilla Firefox
    • Mac: Delete Firefox from the Applications folder.
    • Linux: If you installed Firefox with the distro-based package manager, you should use the same way to uninstall it - see Install Firefox on Linux. If you downloaded and installed the binary package from the Firefox download page, simply remove the folder firefox in your home directory.
  4. Now, go ahead and reinstall Firefox:
    1. Double-click the downloaded installation file and go through the steps of the installation wizard.
    2. Once the wizard is finished, choose to directly open Firefox after clicking the Finish button.

More information about reinstalling Firefox can be found here.

WARNING: Do not use a third party uninstaller as part of this process. Doing so could permanently delete your Firefox profile data, including but not limited to, extensions, cache, cookies, bookmarks, personal settings and saved passwords. These cannot be easily recovered unless they have been backed up to an external device! See Back up and restore information in Firefox profiles.

Please report back to say if this helped you!

Thank you.