Addons section right of the url bar keeps dissapearing

[thibaultmol]

Captchas

• I have read the instructions.
• I have searched existing issues and avoided creating duplicates.
• I am not filing an enhancement request.

What happened?

I can't exactly repro it, but multiple times now i've noticed that the addons in the top right of the Zen window sometimes just dissapear.

When I click the addons button in the top bar, I do see that ALL addons are there (while normally only the overflowing amount of addons is there).

I don't think i've ever messed with toolbar customization either.

It just goes away and then comes back sometimes, didn't happen before 1.8

1.8.2b (Firefox 135.0.1) on KDE Plasma, nixos

Operating System: NixOS 25.05
KDE Plasma Version: 6.3.1
KDE Frameworks Version: 6.11.0
Qt Version: 6.8.2
Kernel Version: 6.12.13 (64-bit)
Graphics Platform: Wayland
Processors: 16 × AMD Ryzen 7 7840U w/ Radeon 780M Graphics
Memory: 60.6 GiB of RAM
Graphics Processor: AMD Radeon 780M
Manufacturer: Framework
Product Name: Laptop 13 (AMD Ryzen 7040Series)
System Version: A7

Reproducible?

• I have checked that this issue cannot be reproduced on Mozilla Firefox.

Version

1.8.2b

What platform are you seeing the problem on?

Linux (AppImage)

Relevant log output if applicable

[4NXIE7Y]

https://github.com/user-attachments/assets/8039dd9e-9d66-4f71-8d95-c4e879e65f3f
Don't know if it will help but here is a video showing when and how it happens.