Why the google toolbar is not compatible whit fire fox 5
When will be posible to install the google toolbar in firefox 5
Todas as respostas (2)
For that you would have to ask Google.
But you have alternatives and you can override compatibility and use the Extension.
The Google Toolbar "will not be supported on Firefox 5 and future versions."
http://googletoolbarhelp.blogspot.com/2011/07/update-on-google-toolbar-for-firefox.html
http://www.google.com/support/toolbar/bin/answer.py?answer=1342452&topic=15356%29
The Google Toolbar 7.1.20110512W version does work pretty good in Firefox 5.0 by using the Compatibility Reporter extension. But not every feature works 100%.
https://addons.mozilla.org/en-US/firefox/addon/add-on-compatibility-reporter/
http://googlesystem.blogspot.com/2011/06/enable-google-toolbar-in-firefox-5.html