No scrollbar in Unified Extensions Menu

[starise]

Describe the bug
When many extensions are installed, no scrollbar appear in Unified Ext. menu.
This makes impossible to access extensions that are not visible.

Screenshots

Setup information

• OS: Arch Linux
• Firefox version: 119
• Theme version: v119

As a workaround, i've solved removing all .unified-extensions-item* references from here:

firefox-gnome-theme/theme/parts/popups.css

Line 174 in 1c32013

/* Menu buttons */

[rafaelmardojai]

How many extensions do you have? I have installed a few but I can't get the scrollbar to show in any case.

Btw, when you get no scrollbar you have items cut off?

[starise]

30 extensions installed. Yes, items cut off and impossible to scroll down with the mouse.
Maybe useful: my screen resolution is 2160p, Gnome scaling 2x (200%).