Unable to install Google toolbar on FF 3 (Firefox 3.0)

[dianne18]

I have made numerous attempts to install the Google toolbar (the most recent version, said to be compatible with FF3). The error message states that Google could not install the the file because of an unexpected installation error (203).
In the extensions list, Google Toolbar for Firefox 3.0.20080605W is listed, with the message "This add-on will be installed when Firefox is restarted." The browser has been restarted many times.
I have tried installing in FF safe mode, and with ZA turned off.
Running Vista SP1.
Have read widely on the Mozilla forums and am unable to resolve this problem.
Would very much appreciate your advice!

[TonyE]

Google released a new version of their toolbar for Firefox 3 on 15th (version 3.1.20080605W). It will install on Firefox 3 release candidates or the Firefox 3 final release. It will not install on Firefox 3 beta builds.

The error message you are getting usually indicates you have some corrupt extension files. See Unable to install add-ons, first of all try the section on corrupt extension files.

[dianne18]

Thank you for your reply.
I tried to install the most recent version of the toolbar without success, spent a lot of time trying all the Mozilla recommended fixes, and finally resolved the problem by a complete uninstall of FF3, using the directions given on the Moxilla site, then re-installing FF3. The toolbar installed immediately. I presume that my installation had corruptions not fixed by the standard procedures.