Tabs in firefox portrait mode theme should be a third or less of the minimum width that they are now

Describe your issue

What's the expected behaviour?

Tabs in firefox portrait mode theme in the tab bar should be a third or less of the minimum width that they are now. Currently, when there are 3 or more tabs open it still only shows one, really wide, just to show me the tab title text - but completely ruining any sense of orientation of how many tabs are open or that I could horizontally scroll in the tab bar.

If this is intended and not a bug, let me share why I think this is a bad trade-off for multiple reasons: 1. it is just very unlike browsers everywhere else in that if I have multiple tabs open, I expect to see a hint of multiple tabs, 2. if I wanted to see the full tab title text, I could still use the tab list menu button to the right, 3. when closing tabs, like this it will often catch me out of the blue that it was the last one since there is simply no visual indication for how many other tabs are left open. Also, 4. on my desktop the minimum tab width if so many are open that they don't fit anymore shows way less text anyway, so I don't see why I would need to see the tab title that much more badly on mobile.

What's the current behaviour?

Tab buttons are so fat that in portrait mode, only one fits. Also see detailed description above.

How to reproduce your issue?

1. Install firefox-esr
2. Launch firefox, turn phone to be in portrait mode
3. Open 3+ tabs and look at tab bar

What device are you using?

PostmarketOS 1.2b Allwinner (3GB variant)

On what postmarketOS version did you encounter the issue?

• edge (master branch)

• v22.06

• I confirm that the issue still is present after running sudo apk upgrade -a

On what environment did you encounter the issue?

Phone environments

• Phosh
• Plasma Mobile
• Sxmo (Wayland/Sway) Please post the output of sxmo_version.sh

Other

• No environment ("none" in pmbootstrap)
• GNOME
• KDE Plasma
• Kodi
• MATE
• Shelli
• Sway
• Weston
• Xfce4
• LXQt
• fbkeyboard
• i3wm
• Sxmo (Xorg/Dwm) Please post the output of sxmo_version.sh
• console UI
• framebufferphone

How did you get postmarketOS image?

• from https://images.postmarketos.org
• I built it using pmbootstrap
• It was preinstalled on my device

What's the build date of the image? (in yyyy-mm-dd format)

don't remember, but somewhat recent

Additional information