How to get Tab Menu by Keyboard ?

[Andrew Schultz]

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Hello, please someone tell me what's the keyboard shortcut to get a
tab menu in the browser ? I checked moz_shortcuts web page, but that
one isn't listed.
I know it exists because quite few times I accidentally hit some
buttons on my keyboard, and a tab menu appeared: (Close Tab/Close
Other Tabs/New Tab/Bookmark This Group of Tabs/Reload tab/Reload All
Tabs). That's the same menu we get when using right-click mouse on
the tab.

You need to hit TAB until the Tab itself has focus. Then hit Shift-F10.