Tabs are shaking

[GRadziejewski]

Description:
Tabs are shaking.

Steps to Reproduce:
Reproduction steps are needed to be found.

Video.2023-08-15.10-47-41-117.mp4

Performance settings is ON.

Expected Results:
Tabs should work normally.

Versions:

Browser: Ghostery Private Browser 2023.6 (eeffcf3)
OS: MacOS 13.4.1 (c)
GBE 8.11.1

[GRadziejewski]

We have another report from a user.

But still, I cannot reproduce such a situation.

[philipp-classen]

For everyone who is affected:

• Toggling hardware acceleration can have an effect (see https://support.mozilla.org/en-US/kb/upgrade-graphics-drivers-use-hardware-acceleration#w_turning-off-hardware-acceleration)
• If it happens only if hardware acceleration enabled, ensure that you are using the latest GPU drivers
• If it still happens, does disabling webgl.disabled (in about:config) make a difference (see https://support.mozilla.org/en-US/kb/upgrade-graphics-drivers-use-hardware-acceleration#w_disabling-webgl)
• Sharing the information in about:support on OS and GPU helps us to understand the problem better. You can use "Copy text to clipboard" and remove any information that you do not want to share. If you do not want to post it on Github, you can also send the information by email to support@ghostery.

(Note: the links above are for Firefox, but the Ghostery Browser is based on Firefox; rendering and tab management should use the identical code.)

[philipp-classen]

So far it has been reported on MacOS and Windows 11. On the affected Windows 11 profile, disabling hardware acceleration seems to avoid the problem.

[philipp-classen]

Update regarding the Windows 11 profile (integrated AMD graphics card) . Seems to still happen, even with disabled hardware acceleration.

Details:
AMD Ryzen 7 4700U with Radeon Graphics 2.00 GHz
RAM 16.0 GB
Windows 11 Pro (Version: 23H2)

[GRadziejewski]

I was able to reproduce this on macOS 14.6.1 and on Windows 11.

macOS:

Screen.Recording.2024-09-16.at.10.11.42.mp4

Windows 11:

Video.2024-09-16.11-01-31-809.mp4