Provide an option to automatically hide the veritical tabs bar when entered fullscreen manually

[Keritial]

Currently, when vertical tabs is enabled and the user entered fullscreen manually via F11, the vertical tabs bar will not hide.

A workaround is Hide tabs and sidebar option in sidebar settings, however it conflicts with Expand sidebar on hover option.

Ideally, both the toolbar and vertical tabs bar should hide in fullscreen unless the user hovers on the edge of the screen.

Can Firefox add a option to hide the sidebar in fullscreen just like how Microsoft Edge was doing or even making this default?

(The current behaviour was observed on Firefox Developer Edition 141.0b9 and I did not verify this on other versions)

[Jon]

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[MohidMK]

There should be an option to hide tabs on fullscreen as well as normal. The bar should only be visible on hover.