Comment 4 for bug 95644

easy step to recreate the observed behaviour are easy (excuse me for not having responded earlier, i did not see your request before):
go to a mail program (i use balsa, but it occured before, when i was using thunderbird).
open mozilla,
chang to a mailer
select the mail that reports about a bug report.
click on the link to the bug report (https://bugs.... /+index# for example)
mozilla opens the page with the bug reports, but i do not see them.
(because i do not see a reaction, i click again - mozilla opens a second tab with the bug report....)
i have to click in the task list to select mozilla and then i see the open bug report (or 2, 3... as often as i clicked, because i had no feedback)

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again: the behavior i expect is that when opening a window in mozilla, then mozilla becomes the open window.

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this is not particular to mozilla, it happens with other programs at well, i will report if i can describe another combination.