Bugzilla

This problem occurs every time when exiting Firefox in maximized size-mode.

Steps to reproduce:
1. Create New profile
2. Run firefox.exe without any command line options
3. Reduce browser size and move to center of screen (To make it easier to check for bugs) 
   And remember the browser position
4. Maximize the browser
5. Exit the browser
6. Run firefox.exe again without any command line options
7. Restore size-mode

Actual results:
Browser moves to the upper left corner of the screen and the top part goes off-screen.

Expected results:
The browser is positioned as remembered in step 3.


Regression window:
https://hg.mozilla.org/integration/autoland/pushloghtml?fromchange=45ed66ca8512ae779333dab919d7d365757eaf4c&tochange=ae53bce6521b13768eb4aba4a62b7bffd40174e2


Workaround:
Set browser.startup.blankWindow to false in about:config
OR
Launch with command line option, i.e., firefox.exe -p

This problem occurs every time when exiting Firefox in maximized size-mode.

Steps to reproduce:
1. Create New profile
2. Run firefox.exe without any command line options
3. Reduce browser size and move to center of screen (To make it easier to check for bugs) 
   And remember the browser position
4. Maximize the browser
5. Exit the browser
6. Run firefox.exe again without any command line options
7. Restore size-mode

Actual results:
Browser moves to the upper left corner of the screen and the top part goes off-screen.
Screencast: https://youtu.be/0DMK8DH5tow


Expected results:
The browser is positioned as remembered in step 3.


Regression window:
https://hg.mozilla.org/integration/autoland/pushloghtml?fromchange=45ed66ca8512ae779333dab919d7d365757eaf4c&tochange=ae53bce6521b13768eb4aba4a62b7bffd40174e2


Workaround:
Set browser.startup.blankWindow to false in about:config
OR
Launch with command line option, i.e., firefox.exe -p