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When I'm working in Firefox, I often accidentally close a tab go-back-in-history when I press the Delete key.

(For example, if I'm in Google Drive, and highlight a file, and then press Delete, the tab closes - instead of deleting the file!)

Is there a way to turn this off? I've dug through about:config and didn't see anything promising.

Update: I made a mistake in my original question: Firefox is going back when I hit Delete, not closing the tab.

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  • good question, I have that problem to. Sadly it looks like one has to install some add on like addons.mozilla.org/en-US/firefox/addon/saka-key/?src=search to do that, which I am hesitant to do.
    – Ruskes
    Dec 13, 2018 at 18:31
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    The delete key (forward or backward) doesn't normally close the current tab? Is this issue caused by some add-on?
    – Alexander O'Mara
    Dec 13, 2018 at 21:07
  • Same as Alexander, the Delete key doe not close a tab or window for me, and it never has as I recall. There may be a config on your computer that is changing the behavior of delete in Firefox.
    – Steve Chambers
    Dec 14, 2018 at 0:19

1 Answer 1

Reset to default
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Now that I realized it was "go back" instead of "close tab" - the answer can be found here:

You can set this pref to 2 on the about:config page to disable the backspace_action. browser.backspace_action = 2

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