Err...sorry, that's not correct, Thunderbird 3.0.x and Firefox 3.5.x were based on the Gecko 1.9.1 branch, so 10.04 had those fixes in Firefox and Thunderbird since release, it must be a new bug.
Err...sorry, that's not correct, Thunderbird 3.0.x and Firefox 3.5.x were based on the Gecko 1.9.1 branch, so 10.04 had those fixes in Firefox and Thunderbird since release, it must be a new bug.