Windows 10: Weird bug with the Windows 10 taskbar and Firefox

I'm having this bug with Firefox I can't solve.

Windows 10 (pro 1909) taskbar is set to automatically hide and should unhide when I move my cursor to the bottom of the screen.
This works with any program or app but Firefox.
With Firefox maximized the taskbar never unhides unless I press the win key.

Tried resetting Firefox, nothing. Tried switching to nightlies or beta, nothing.Trying old versions and... well the bug is not present with FirefoxPortable ESR 52.8.1, but anything newer doesn't work.

Any suggestions?

submitted by /u/Cat_perso
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:)

 

Pinning Firefox to Taskbar causes second icon on tasbar to appear

Hi,

Apologize for the difficulties that you're experiencing regarding this issue and also for the delay in getting back to you. Do not worry. Let me help you in fixing this issue.

Did you try reinstalling the Firefox program? If not, I suggest that you do the same and check if it helps.

Combining the taskbar buttons should fix this issue. Refer to the following steps to do the same:

• Right click on Taskbar and select
  Properties.
• Select Always combine, Hide labels
  in Taskbar buttons.

Hope this helps. Get back to us for further assistance.

 

Taskbar bug: switching to another window -will not appear at the front


Follow either of these steps to fix the issue with the Active window hiding behind.

Method 1:
I suggest you to disable window by hovering over it with the mouse and check if it helps. To do so I suggest you to try the below given steps and check if it helps:

1. Press Windows key + X key and click on Control Panel.
2. Select or click Ease of Access.
3. Click or tap onEase of Access Centre.
4. Click on Make the Mouse Easier to Use was uncheck Activate Window by hovering over it with the mouse.
5. Check if issue is resolved.

Method 2:
I would suggest you to completely uninstall the touchpad driver and reinstall it. Kindly follow the below given steps.

1. Press “Windows key + X” and click on “Device Manager”.
2. In the list of devices, you should see the touchpad drivers.
3. Right click on the device and then select "Uninstall".
4. In the uninstall dialog, make sure you select the option to delete the driver package from the system. This causes the driver package installed earlier to be deleted.
5. In the Action menu of Device manager, select “Scan for Hardware changes” option. This will cause the device driver to be reinstalled. Once the driver is installed, close all windows and restart the computer.

 

Weird taskbar icon thumbnails for Firefox


Not sure if this is a browser (latest Firefox) or Windows problem, so I'll describe the issue here.

All my program shortcuts are placed on the taskbar. The problem I'm about to describe and show, only occurs with the Firefox taskbar icon and its preview thumbnails. And will happen whether one or multiple tabs are on the tab bar. When hovering the cursor over FF's tab bar icon, and then hovering (and not clicking) the cursor over a tab's preview thumbnail, FF's window will now show several tiled FF's with the present thumbnails site on top. But, now clicking on that thumbnail, the site will open as a single site...with no evidence of the other apparently opened FF's. This only happens with the FF taskbar icon's thumbnail and not with any of the other icons on the bar.

Here are some captures of this odd occurrence: