issue when using two displays with different resolution with windows 10



2 years ago
2 years ago


(Reporter: roquemaurel, Unassigned)


52 Branch

Firefox Tracking Flags

(Not tracked)




2 years ago
User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:53.0) Gecko/20100101 Firefox/53.0
Build ID: 20170504105526

Steps to reproduce:

when I moved a firefox or thunderbird window from the highest resolution display to the lowest, the zoom factor of the window was adjusted (reduced).
This is no more done with the new version 52 of thunderbird

Actual results:

now the top title bar and menu part of the thunderbird windows covers half of the low res display. This is also the case with the message compose window.

Expected results:

the zoom factor of the window should be reduced when the window is moved in the low res display

Comment 1

2 years ago
Since this is reproducible in FF and TB uses Mozilla core technology, please report this bug to FF.
Component: OS Integration → General
Product: Thunderbird → Firefox

Comment 2

2 years ago
Since this issue does not arise in FF but only in TB I don't think it should be reported to FF

Comment 3

2 years ago
Sorry, I misunderstood.
Component: General → General
Product: Firefox → Thunderbird
Roquemaurel, have you tried Firefox 52 too, or only 53? And could you try a Daily build? In this we have bug 1356841 landed.

You can find a Daily here:

Comment 5

2 years ago
This bug arises with version 52.0 of TB and now with 52.1.1, but never with FF (I currently uses FF version 53.0.2

Comment 6

2 years ago
This bug is also present in TB daily 55.0a1 win64
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