Firefox and dictionary popup
This might be useful: https://support.mozilla.org/en-US/kb/changes-toolbars-and-window-sizes-are-not-saved
Thanks. This does help. It doesn't solve my problem, yet, because I haven't applied it yet, because it would remove all add-ons. But if I cannot solve my problem any other way, I might give it a go. However, it also shows there are many tools within Firefox to troubleshoot problems, so I am very glad you brought this up: thank you!
Well, your tip eventually fixed it. I didn't follow the advice, as my problem was different from the one described, but I did press a "verify integrity" button, locate at an entry called "database". That apparantly fixed it, although I have no idea why. Thanks for your tip!
I use a stacking window manager on Linux, and all my windows are stacked, no matter what. When I open a dictionary in Lingq, automatically appears a window to the right.
Maybe check you desktop environment or window manager, how it handles windows.
Well, I use gnome. Not sure it is under gnomes control though, as the way a window appears is under control of Firefox. But I will check. Thanks for the tip. What window manager are you using?
I use i3.