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I want to delete some form data in Firefox. At Tools > Clear Recent History... there is option to delete all form data, but I do not want to do that. I expected that highlighting the entry I want deleted and pressing delete button would delete the it, but that does not work.

4 Answers 4

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To delete saved form data in Firefox on a item-by-item basis:

  • Highlight what you want to be deleted in the drop-down.
  • Make certain that the drop-down remains on the screen.
  • Press Shift+Delete to remove that entry.

Note: If you click an item from the drop-down, it populates the input box and the drop-down disappears. If you highlight the text in the input box and press shift+delete, the only result is that the input box is cleared. Doing this does not delete the saved form data.

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  • This still works (as of 2019). To be clear about the process: On the webpage with the form, first clear the form field. Then you can open said drop-down by clicking again into the form field.
    – Qw3ry
    Jul 8, 2019 at 7:27
  • 1
    This still works as of 2022. To highlight an element of the drop-down you have to press the DOWN arrow. If you mouse over the element, it won't work.
    – Eric Jeker
    Oct 18, 2022 at 3:29
  • due to a pw management plugin it worked for me ONLY using the up arrow.
    – ilam engl
    Aug 23, 2023 at 8:48
  • Works as of March, 2024 in FF 123.0.1
    – eminemence
    Mar 25 at 14:46
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Highlight the entry to be deleted and press shift+delete.

Source: http://www.missiondata.com/blog/uncategorized/53/firefox-saved-form-data-frustrations/

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In Firefox Mobile you can, when the the dropdown appears you can sleect-and-hold-and-swipe-left.

Select-and-hold

Swipe left

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Update: No longer true with the new Webextension API. Form History control manages a separate history.


Use the "Form History Control" extension. Can automatically cleanup just the unwanted formdata.

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