We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

当サイトはユーザー体験を改善するためのメンテナンスを実施中に機能が制限される予定です。記事を読んでもあなたの問題が解決せず質問をしたい場合は、Twitter の @FirefoxSupport、Reddit の /r/firefox で、サポートコミュニティが皆さんを助けようと待機しています。

Mozilla サポートの検索

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

詳しく学ぶ

このスレッドはアーカイブに保管されました。 必要であれば新たに質問してください。

can't start FF after upgrade to 6.0, only getting XULRunner error.

  • 2 件の返信
  • 13 人がこの問題に困っています
  • 7 回表示
  • 最後の返信者: cor-el

more options

After upgrading from FF 5.x to FF 6.0, can't start FF; am getting XULRunner window saying "Error: Platform version '5.0' is not compatible with minVersion >= 6.0 maxVersion <= 6.0".

Tried Uninstall, then Delete userprofile folder, then reinstall but doesn't fix.

After upgrading from FF 5.x to FF 6.0, can't start FF; am getting XULRunner window saying "Error: Platform version '5.0' is not compatible with minVersion >= 6.0 maxVersion <= 6.0". Tried Uninstall, then Delete userprofile folder, then reinstall but doesn't fix.

すべての返信 (2)

more options

I tried pressing the "I have the problem too" button on this page, but it does not work -- just hangs in Internet Explorer 8.

I cannot press it with my preferred browser, Firefox, because the upgrade to 6 killed it -- and I have no access to my bookmarks and passwords.

I have had this problem with the past several upgrades. The recommendations on the web page do not work (uninstall, remove folder, re-install). I've had to do a complete (including my information) uninstall, then rebuild my profiles.

I really appreciate the effort that the Firefox development community puts in, but this is getting old. Can anyone specify the correct file to zap to fix the XULRunner version problem?

more options

The updater wasn't able to update all the files and some were left as older versions.
Do a clean reinstall.

Download a fresh Firefox copy and save the file to the desktop.

  • Uninstall your current Firefox version.
  • Do not remove personal data when you uninstall the current version.

Remove the Firefox program folder before installing that newly downloaded copy of the Firefox installer.

  • It is important to delete the Firefox program folder to remove all the files and make sure that there are no problems with files that were leftover after uninstalling.

Your bookmarks and other profile data are stored elsewhere in the Firefox Profile Folder and won't be affected by a reinstall, but make sure that you do not select to remove personal data if you uninstall Firefox.