[Bug] After upgrading to Firefox 133.0, the horizontal bar of tabs, which I've successfully hid with chrome.css, has reappeared

[hub2git]

I've upgraded from one firefox version to another, and haven't had this problem. It's just today, when I upgraded to version 133.0.

This is my chrome.css

#titlebar {
display: none !important;
}
 
#sidebar-box[sidebarcommand="treestyletab_piro_sakura_ne_jp-sidebar-action"] #sidebar-header {
  display: none;
}    
 
#sidebar {
  min-width: 100px !important;
}
 

Expected result

The horizontal strip of tabs should stay hidden, as it has been for many previous versions.

Environment

• Platform (OS): Linux Mint Cinnamon 64-bit
• Version of Firefox: 133.0 (64-bit)
• Version (or revision) of Tree Style Tab: 4.0.25 (Nov 19, 2024)x