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 have chosen atleast 5 different things and told that they aren't compatible. I have Vista - Love Mozilla

  • 3 replies
  • 1 has this problem
  • 1 view
  • Last reply by rabbitstu2

rabbitstu2
rabbitstu2
more options

popup says, "Firefox could not install the file at

https://addons.mozilla.org/firefox/downloads/latest/4810/addon-4810-latest.xpi?src=addondetail

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

other uninstallable plugins :

  • FeedBurner Subscribe - popup says its not compat with FfoxM 3.6 but this info isnt given 
*FlashResizer
popup says, "Firefox could not install the file at https://addons.mozilla.org/firefox/downloads/latest/4810/addon-4810-latest.xpi?src=addondetail because: Unexpected installation error Review the Error Console log for more details. -203'''bold text'' other uninstallable plugins : * FeedBurner Subscribe - popup says its not compat with FfoxM 3.6 but this info isnt given *FlashResizer

All Replies (3)

TonyE
TonyE
  • Moderator
more options

This link should help - https://support.mozilla.com/kb/Unexpected+installation+error+-203+when+installing+add-ons

rabbitstu2
rabbitstu2 Question owner
more options

I'm not doing something right Thanks for quick response :)

Modified by rabbitstu2

rabbitstu2
rabbitstu2 Question owner
more options

ok I tried all the things it said to do 2ce lol to make sure I did it right, not sure tho because I didnt get too far with it. Am bolding the parts I couldn't find or do.

  • click the File menuFile menuFirefox menuFirefox - - Couldn't find this

menu (File menu in Windows XP) and select ExitQuit FirefoxQuit. 

  3. Delete the following files: 

   *
         o extensions.ini
         o extensions.cache
         o extensions.rdf

couldn't find them. Did a search in that folder that told me to click "Open Containing Folder"