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!

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

This thread was archived. Please ask a new question if you need help.

downloaded 3.6.15 but get an error when trying to launch Platform version 1.9.2.15 is not compatible with minVersion>= 1.9.2.13 max Version <= 1.9.2.13

  • 1 reply
  • 14 have this problem
  • 4 views
  • Last reply by TonyE

rcoleman
rcoleman
more options

I downloaded and installed update 3.6.15 when I try to launch firefox I get a XULRunner error

Platform Version '1.9.2.15 is not compatible with minVersion >= '1.9.2.13' maxVersion <='1.9.2.13'

How can I fix this?

I downloaded and installed update 3.6.15 when I try to launch firefox I get a XULRunner error Platform Version '1.9.2.15 is not compatible with minVersion >= '1.9.2.13' maxVersion <='1.9.2.13' How can I fix this?

All Replies (1)

TonyE
TonyE
  • Moderator
more options
  1. Delete the files and folders in the Firefox installation directory, default location is C:\Program Files\Mozilla Firefox\
  2. Re-install Firefox

This method will not remove your Firefox user data such as bookmarks and passwords, those are stored elsewhere in your profile folder, and will be used when you re-install Firefox.