Important Notice: We're experiencing email notification issues. If you've posted a question in the community forums recently, please check your profile manually for responses while we're working to fix this.

On Monday the 3rd of March, around 5pm UTC (9am PT) users may experience a brief period of downtime while one of our underlying services is under maintenance.

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.

I get error message whenever I try and download add-on's,WHY?

  • 1 reply
  • 2 have this problem
  • 6 views
  • Last reply by TonyE

amyg313
amyg313
more options

Firefox could not install the file at

https://addons.mozilla.org/en-US/firefox/downloads/latest/256/addon-256-latest.xpi

because: Unexpected installation error Review the Error Console log for more details. -203 I get this message for any add-on. Using CA security Suite free from Timewarner,rr.com. Brfore I downloaded this software, Firefox worked just fine.

Firefox could not install the file at https://addons.mozilla.org/en-US/firefox/downloads/latest/256/addon-256-latest.xpi because: Unexpected installation error Review the Error Console log for more details. -203 I get this message for any add-on. Using CA security Suite free from Timewarner,rr.com. Brfore I downloaded this software, Firefox worked just fine.

All Replies (1)

TonyE
TonyE
  • Moderator
more options

See Unexpected installation error -203 when installing add-ons