Firefox could not install the file at https://addons.mozilla.org/firefox/downloads/file/84083/screengrab-0.96.3-fx.xpi?src=api because: Unexpected installation error Review the Error Console log for more details. -203
i am runningWindows 7 64-bit version and recently installed Firefox for beta version seemed to work okay first found when using Facebook on Farmville if I tried to send a gift images showed what appeared to be an HTML file I tried running the install updates the Flash player which make no difference therefore I uninstalled the beta version and then reinstalled the 3.6 version. That has not gone as well as expected at installing it my add-ons longer work in every trying go to the add-ons page the open window freezes again have to control ALT and delete to close the add-on window I can no longer use speed dial cannot disable it or enable it and it does not appear to be running the chrome window does not come up and fear I may have lost all my passwords and settings etc hopefully you will be able to help me with this matter. Many thanks Kevin
All Replies (1)
This link should help - https://support.mozilla.com/kb/Unexpected+installation+error+-203+when+installing+add-ons