Thick Extra Border from top when using `bookmarkbar.multi_row` with some other settings.

[KAGEYAM4]

Describe the bug

I am using hide-tabbar , autohide - navbar, autohide bookmarkbar. A thick bar remains on top. Whenever the multi-row value crosses 1 , this happens.

Expected behavior

AutoHIde working perfectly.

Screenshots

OS

Linux

OS - Others

No response

Firefox Version

v119.0 (64-bit)

Distribution

• [X] Original Lepton
• [ ] Lepton's photon style
• [ ] Lepton's proton style

Theme

• [ ] Light
• [X] Dark
• [ ] Alpenglow (System: Light)
• [ ] Alpenglow (System: Dark)
• [ ] System Default
• [ ] Others: (e.g. Photon Colors, Google Chrome Dark, Fairytale Of Nature)

Theme - More Info

No response

user.js setup

user.js setup

```javascript user_pref("userChrome.autohide.tabbar", false); user_pref("userChrome.autohide.navbar", true); user_pref("userChrome.autohide.bookmarkbar", true); user_pref("userChrome.autohide.toolbar_overlap", true); user_pref("userChrome.autohide.toolbar_overlap.allow_layout_shift", false); user_pref("userChrome.autohide.page_action", true); user_pref("userChrome.hidden.tabbar", true); user_pref("userChrome.hidden.sidebar_header", true); user_pref("userChrome.hidden.sidebar_header.vertical_tab_only", false); user_pref("userChrome.hidden.urlbar_iconbox", true); user_pref("userChrome.hidden.bookmarkbar_label", false); user_pref("userChrome.hidden.disabled_menu", true); user_pref("userChrome.centered.urlbar", true); user_pref("userChrome.centered.bookmarkbar", true); user_pref("userChrome.urlView.always_show_page_actions", true); user_pref("userChrome.sidebar.overlap", false); user_pref("userChrome.bookmarkbar.multi_row", true); ```

Additional context

No response

[hdk5]

Somewhat similar/related issue here, although the gap is not as big. It narrows down to userChrome.hidden.tabbar setting.

[hdk5]

bump, please

[black7375]

@hdk5 I'll look in it. thanks.