Search Engine Location Bug Rated 1 out of 5 stars

I'm using firefox in french and so my google search engine in omnibar is .
Today I used in english to make some searches, I selected it from my home page, with the link in English.
Since then my default Google search engine in the omnibar has been set to !! Wathever the change I make in my google page (clicking back on "Go to Google France").
I tried to delete and reset the google search engine in the search engine menu of the bar but it stay .
The only way to come back to my default setting was to disable the omnibar, restart firefox and enable the omnibar again.
I try the same thing with another google, like the spanish one, but my default search engine in the bar stayed in french.
So the bug seems to be only with .
Really really weird.
If somebody can check on his system...Thanks

I'm using firefox 3.6.13 and XP pro Sp3

This review is for a previous version of the add-on (