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v133 Performance Problems - Tab Bar extremely slow to react on mouseover, tab switch also extremely slow

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Hello!

Switching between tabs used to be instant. Ever since updating to v133, it takes over a second (both through the Ctrl-Tab shortcut and through clicking on another tab in the tab bar), which is really really bothering me.

The tab bar has also started taking over a second to react visually when I hover over it with the mouse, even with thumbnail previews disabled. I have no idea what's causing this. Please help.

Performance profile here: https://share.firefox.dev/4gpjqZA

Hello! Switching between tabs used to be instant. Ever since updating to v133, it takes over a second (both through the Ctrl-Tab shortcut and through clicking on another tab in the tab bar), which is really really bothering me. The tab bar has also started taking over a second to react visually when I hover over it with the mouse, even with thumbnail previews disabled. I have no idea what's causing this. Please help. Performance profile here: [https://share.firefox.dev/4gpjqZA https://share.firefox.dev/4gpjqZA]

leohoeppner द्वारा सम्पादित

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