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!

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

Firefox could not install the file at http://s31.freecause.com/4Loot.xpi because: Unexpected installation error Review the Error Console log for more details. -203, I always get tis no matter what

  • 1 reply
  • 14 have this problem
  • 6 views
  • Last reply by cor-el

more options

Firefox could not install the file at XPI seems to be the problem on all my extensions because: Unexpected installation error Review the Error Console log for more details. -203

Firefox could not install the file at XPI seems to be the problem on all my extensions because: Unexpected installation error Review the Error Console log for more details. -203

All Replies (1)

more options