Firefox Feature Request: Up/Down Scroll Buttons for Vertical Tabs

[Mehedi_Hasan]

Add optional up/down scroll buttons for the vertical tab bar (similar to how horizontal tabs show scroll arrows).

Currently, Firefox’s vertical tab setups (whether through built-in sidebar behavior or extensions) rely entirely on free scrolling using the mouse wheel or touchpad. When a user has many tabs open, navigating the vertical list can be difficult because:

• The list scrolls too quickly or inconsistently

• Touch/trackpad scrolling jumps unpredictably

• There is no precise step-by-step navigation

• Keyboard cycling (Ctrl + Tab) does not actually scroll the list

Requested Enhancement

Please add optional up/down arrow buttons to the vertical tab strip, equivalent to the left/right arrows that appear on the horizontal tab bar when the tab bar overflows.
These arrows should allow:

• Clicking to scroll the tab list up/down

• Holding the button to continuously scroll

• Possibly customizing scroll speed

This feature would significantly improve usability for users who maintain many tabs or prefer discrete scrolling rather than freewheel scrolling.

Why This Matters

• Vertical tabs are increasingly popular

• More users are using widescreens where vertical tabs are ideal

• Precise control is difficult with free scrolling

• Similar UI patterns already exist in Firefox (horizontal tab arrows)

• Competing browsers (Edge, Vivaldi with modding) already support similar behavior

[Jon]

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