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my Firefox bookmark toolbar items change icons every now and then for apparently no reason, specially if a site is down. I get the DNS site's icons all over, on another case I have the Facebook icon on a TOTALLY irrelevant bookmark, so the question is: How can I change the icons on my bookmarks in the bookmark toolbar?

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Is this what you are looking for? – r0ca Sep 23 '10 at 14:20

2 Answers 2

up vote 3 down vote accepted

Favicon Picker 2 adds a UI for replacing bookmark icons. The extension is based on the the version posted in MozillaZine. It also features an increased icon size limit.

enter image description here

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Bookmark Favicon Changer

Right click at your bookmark (Bookmark menu, Bookmark toolbar, Bookmark sidebar, Bookmark manager); the popup menu with option "Change Favicon", "Reset Favicon", "Remove Favicon" and "Export Favicon" will appear.

File types support are ico, bmp, dib, gif, jpg, jpe, jpeg, jif, jfi, jfif, png, apng, svg (every file types that Firefox or SeaMonkey support including URL).

enter image description here

  1. To get Bookmark Favicon Changer to work in Firefox 40 go to this link
  2. Instead of clicking on Free Install select the Mirror for Download link and Download to a folder of your choice
  3. In the main Menu of Firefox select File
  4. Select Open File from the drop down menu
  5. Navigate to the place where you downloaded Bookmark Favicon Changer and
    open it

You will now find that it is in your add-on extension list

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