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How do I delete a Bookmark? I keep being told "Page not Found"

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The Mozilla Support website directs me to a page that says ?Page not Found"

The Mozilla Support website directs me to a page that says ?Page not Found"

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Try using the Library window. Either:

  • Command+Shift+b
  • Bookmarks menu > Show All Bookmarks

There's a list in the left column you can use to look at the Bookmarks Toolbar, the Bookmarks Menu, and the Other/Unsorted Bookmarks category.

If the location is not obvious, you can use the search box in the upper right corner of the Library to search for part of the title or address.

Are you able to delete the unwanted bookmark there?

Possibly useful articles:

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Also, your Firefox identified itself to the forum as version 49. An update is available: this article describes how to get Firefox 56 using the "About Firefox" dialog on the help menu: Update Firefox to the latest release.

If something is holding you back from upgrading to Firefox 56, please let us know so we can suggest solutions or workarounds. Version 49 is not secure; Mozilla discloses security flaws after each new release.

Sometimes Firefox reports the wrong version because that information was saved in a preferences file. If the "About Firefox" dialog (see first article link) shows Firefox 56.0, you may need to clear out that incorrect information. See: How to reset the default user agent on Firefox.