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Cannot move Firefox- Thunderbird-Window to second monitor any more

  • 1 reply
  • 1 has this problem
  • 28 views
  • Last reply by Ulrich

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I use two displays, suddenly it is no more possible to move the Firefox- and/or Thunderbird-Windows from Monitor to the other monitor, grabbing its mainbar and trying to move, the window sticks on half way and then flops back.

I use two displays, suddenly it is no more possible to move the Firefox- and/or Thunderbird-Windows '''from Monitor to the other monitor''', grabbing its mainbar and trying to move, the window sticks on half way and then flops back.
Attached screenshots

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"... And I don't think you can move the Mainbar that will remain with the Browser or Window it's open in. ..."

i grab the mainbar with a left mouseclick (hold) and drag the hole window (see picture), worked fine until a few days ago. No Win_Update in between.

Modified by Ulrich