PS: I think you're referring to "Always on visible workspace" option to
show it on all "desktops", right?
** Summary changed:
- firefox "looses" the "visible on any desktop" option after popups
+ firefox "looses" the "Always on Visible Workspace" option after popups
** Changed in: ubuntu
Thank you for taking the time to report this bug.
Could you please provide the following information to make this bug report
complete:
1. The output from terminal command: apt-cache policy firefox
2. Which version of Ubuntu are you using?
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firefox "looses" the "Always on Visible Workspace" op