This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

Search Support

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.

Learn More

Lolu chungechunge lwabekwa kunqolobane. Uyacelwa ubuze umbuzo omusha uma udinga usizo.

I can't access the Firefox browser

Christine O'Sullivan
Christine O'Sullivan
more options

I get the following error message when I try to open the Firefox homepage. XUL runner Error: Platform version 124.0.2 is not compatible with minVersion >=124.0.1 maxversion <=124.0.1

I get the following error message when I try to open the Firefox homepage. XUL runner Error: Platform version 124.0.2 is not compatible with minVersion >=124.0.1 maxversion <=124.0.1

All Replies (2)

Chris
Chris
more options

Hello Christine,

look here: https://support.mozilla.org/de/questions/1432666#answer-1643746

i had the same problem and this was the solution.

jscher2000 - Support Volunteer
jscher2000 - Support Volunteer
  • Top 25 Contributor
more options

Hi Christine, this problem occurs when the updater wasn't completely successful in replaced all the older version program files. Maybe a file was locked? If you download and run the full installer, it should complete the job. In fact, it should recognize that you already have Firefox and do a seamless update. If you aren't confident, you could consider making a profile backup.