Mozilla VPN is currently experiencing an outage. Our team is actively working to resolve the issue. Please check the status page for real-time updates. Thank you for your patience.

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.

Error message, app can't run on this pc, shows 3x, then the program runs fine, after I click close 3x Version 34

  • 2 replies
  • 1 has this problem
  • 5 views
  • Last reply by cor-el

Jnichols59
Jnichols59
more options

Every time I open up FireFox, after the latest update, I get the error message "This app cannot run on this PC...." I have to click "close" three times and then it opens and runs fine. It's annoying to have to do this every time I open the program now. It seems to run just fine after I do this. And I've been using FireFox for many many years now. Just the last update seemed to cause this. Version 34

Every time I open up FireFox, after the latest update, I get the error message "This app cannot run on this PC...." I have to click "close" three times and then it opens and runs fine. It's annoying to have to do this every time I open the program now. It seems to run just fine after I do this. And I've been using FireFox for many many years now. Just the last update seemed to cause this. Version 34

All Replies (2)

guigs
guigs
more options

Are you running any programs in a older version of Windows? http://windows.microsoft.com/en-us/wi.../older-programs-compatible-version-windows looks like you can turn this off: http://windows.microsoft.com/en-us/wi.../program-compatibility-assistant-faq#1TC=windows-8

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

You can check the home page setting and possibly use about:blank.

  • Tools > Options > General > Startup: Home page

Firefox supports multiple home pages separated by '|' (pipe) symbols.

Start Firefox in Safe Mode to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem.

  • Switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance
  • Do NOT click the Reset button on the Safe Mode start window