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

Updating FF, why did I receive an XULRunner Platform Version '75.0' Error?

  • 1 reply
  • 2 have this problem
  • 1 view
  • Last reply by philipp

more options

While updating FF on my Windows 10 laptop, I received an error from XULRunner. Platform version '75.0' is not compatible with minVersion > = 74.0.1, maxVersion < = 74.0.1. Now FF will not open. Help?

While updating FF on my Windows 10 laptop, I received an error from XULRunner. Platform version '75.0' is not compatible with minVersion > = 74.0.1, maxVersion < = 74.0.1. Now FF will not open. Help?

Chosen solution

hi, this might be the result of an update that has gone wrong and leaves a program folder with partly old partly new files. that should be solvable by downloading & reinstalling firefox: https://www.mozilla.org/firefox/all/

Read this answer in context 👍 0

All Replies (1)

more options

Chosen Solution

hi, this might be the result of an update that has gone wrong and leaves a program folder with partly old partly new files. that should be solvable by downloading & reinstalling firefox: https://www.mozilla.org/firefox/all/