Icon for Firefox bookmarks create
Favicons, for example, in the Internet with a Generator generate. An example page is the Favicon/Icon Generator. After you have drawn the Icon there, or have uploaded, click "OK" and then click "download here" to save your Icon.

Bookmark Icons online create
Create bookmark Icons in Firefox insert
- Download the add-on "Bookmark Favicon Changer". The Browser extension works for Firefox versions Firefox 4 to 45. Later, and thus, newer versions of the browser don't support the program, "probably", as the developer announced on its website.
- After the Installation of the add-ons you need to restart the Browser to. Click with the right mouse button on the to change the bookmark. You will now find the function "Favicon change" in the opened menu. You click on it.
- It is the folder structure of your system opens. Now select the desired Icon. The Change occurs in the Firefox Browser directly.

Favicon in Firefox to change
Another practical tip explains how to favicon in your Website.
