Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

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 keep getting an error -203 when i try to addon greasemonkey

  • 1 reply
  • 15 have this problem
  • 9 views
  • Last reply by cor-el

angieamah
angieamah
more options

this is a copy of the error message i get....

Firefox could not install the file at

https://addons.mozilla.org/firefox/downloads/latest/748/addon-748-latest.xpi?src=addondetail

because: Unexpected installation error Review the Error Console log for more details. -203

and this is a copy from my error console

Error: e.location.getItemLocation(e.id) is null Source File: file:///C:/Program%20Files%20(x86)/Mozilla%20Firefox/components/nsExtensionManager.js Line: 3533

Please tell me what i need to do to fix this!

this is a copy of the error message i get.... Firefox could not install the file at https://addons.mozilla.org/firefox/downloads/latest/748/addon-748-latest.xpi?src=addondetail because: Unexpected installation error Review the Error Console log for more details. -203 and this is a copy from my error console Error: e.location.getItemLocation(e.id) is null Source File: file:///C:/Program%20Files%20(x86)/Mozilla%20Firefox/components/nsExtensionManager.js Line: 3533 Please tell me what i need to do to fix this!

All Replies (1)

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

See: