Windows 7, 64-bit OS AM and I tried to download addons/themes, but they will not install in Firefox

I tried to download (successfully), addons and themes however Windows 7 tells me that there is an error and it does not recognize the software and cannot open it. So can not change or add to Firefox. AM also using Word 2010 sxo don't know if this is causing the problem.

If download you the XPI file, then you can use file > open the file to install the extension.

It is easier to install the extension directly on the site with a left-click instead of save the file.

See also http://kb.mozillazine.org/Installing_extensions

Tags: Firefox

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