I only have a couple of add-ons or extensions installed because Firefox is already a memory hogger. They are Google Toolbar, LastPass and Lazarus. The features that I find very useful in the Google Toolbar is Translate. It enables me to easily translate words or even the whole webpage from a foreign language to English. Other than that I can easily access my Gmail by clicking on the Gmail icon and also to view pagerank of a site. There are also many other useful features such as the spell checker and bookmarks. So far whenever I update Firefox to the latest version, the Google Toolbar is definitely compatible with it.
However, since the Mozilla Firefox team is following the Google Chrome footsteps in releasing major version number updates much faster, for the first time the Google Toolbar is unable to keep up the compatibility with Firefox 5.0. If you click on the Update Firefox button at the Firefox Software Update window, the next thing you will see is the notification of Incompatible Add-ons Found with Google Toolbar for Firefox listed there. Clicking the OK button will proceed with downloading Firefox 5.0. During the update process, Firefox again will show that the Google Toolbar is incompatible.

Clicking the Check Now button is pretty much useless for now because Firefox will tell you that it is unable to find updates to your incompatible add-ons.
Go to the Add-ons Manager and you will find that there is no way to force Firefox to enable the Google Toolbar.
There are three solution to this problem. First is to wait for Google to update the toolbar so that it is compatible with Firefox 5.0.
If you don’t want to wait, you can either downgrade to Firefox 4.0.1 by downloading from this official Firefox download link or install an add-on called “Add-on Compatibility Reporter“.
The Add-on Compatibility Reporter add-on will force the incompatible add-on to work with Firefox. All you need to do is install the add-on, restart Firefox TWICE (first time is to install the add-on and second time is to disable the compatibility restriction), and the disable incompatible add-ons will be automatically enabled. It is that easy and nothing else needs to be done. I can verify that the incompatible Google Toolbar works fine with Firefox 5.0. Try it at your own risk if you cannot live without Google Toolbar and you want to use Firefox 5.
[ Download Add-on Compatibility Reporter ]
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my norton toolbar is in chinese, how can i translate it in english? thanks.
ur website in 100 top blog in malaysia
Another alternative option
you can use Disable Add-on Compatibility Checks extension, im using since firefox3
addons.mozilla.org/es-ES/firefox/addon/checkcompatibility/
a really big thanks for this – i use google toolbar a lot as i use several google services and was used to having them on hand when i needed too. Without the toolbar i was getting frustrated and was even experimenting with IE for a while-
ONE of the joys of the browser races.
Hi Raymond . What do you think , this `Add-on Compatibility Reporter` can be used to re-enable Kaspersky`s add-ons in Firefox ?
I use kis 12.0.0.374 and it did installed 3 add-ons in Firefox that were disabled when FF updated to v.5.0 …
Magic–that worked brill,Raymond.
PS-can’t understand why people grumble about Microsoft and Google–yes they do gather your info together but where would we be if Bill and his mates hadn’t had some incentive–still using morse code.
Who really wants a spyware like Google Toolbar in their browser in the first place?
i’m trying to avoid using any google products as they’re all just spyware/trackerware anyway…..don’t know why anyone would use a google toolbar…
thank you very much
Thanks for the addon, usually i rename the addon extension to zip, extract the install.rdf and modify the max ver to a higher number then repack the addon and rename to xpi …. it works most of the times
Just wanted to chime in. For the past 4 or 5 years, I’ve used something called Nightly Tester Tools. It has the same feature as Add-on Compatibility Reporter as well as a few other customization related features.
Doesn’t extensions.checkCompatibility.5.0 work?
There are so many add-ons not compatible that I uninstalled FIREFOX 5 and went back to Firefox 4. It’s not only Google Toolbar it’s on my PC even Steganos Password Manager 12 which is working in Windows Eplorer 9 and Firfox 4.
“Quick Restart” and “Tab Killer” are two handy extensions I can’t live without. I used to change settings directly in the about:config page, but getting tired of having to go there each FF update, I’ve finally installed the “Add-on Compatibility Reporter” since the browser’s version 5.0 came out.
As for Google Translate I simply bookmarked it. I don’t have a need for Google Toolbar, when I’m keeping my hands off it all the time.
Why do I see only a half of the article(s)?
“Try it at your own risk if you cannot live without Google Toolbar and you want to use Firefox 5.”
LOL
thank you very much