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Firefox could not install the file at https://s3.amazonaws.com/com.alexa.toolbar/autoupdate/alxf/alxf-2.01.xpi because: Unexpected installation error Review the Error Console log for more details. -203

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  • Last reply by TonyE

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I have this problem with other installs or plugins too. I am using Vista Ultimate: Firefox could not install the file at

https://s3.amazonaws.com/com.alexa.toolbar/autoupdate/alxf/alxf-2.01.xpi

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

I have this problem with other installs or plugins too. I am using Vista Ultimate: Firefox could not install the file at https://s3.amazonaws.com/com.alexa.toolbar/autoupdate/alxf/alxf-2.01.xpi because: Unexpected installation error Review the Error Console log for more details. -203

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This is often caused by a corrupt file, to fix it you need to delete 3 files.

In the Help menu select "Troubleshooting Information", this will open up a new tab. Near the top of the troubleshooting information tab, under "Application Basics" click on the "Open Containing Folder" button, this will open the profile folder in Windows Explorer (or your default file manager).

Now close Firefox, then delete the following 3 files in the profile folder, extensions.ini, extensions.cache and extensions.rdf. When you re-start Firefox those 3 files will be recreated. You should then be able to install the extension.