Please update to the latest version: 25.0; https://getfirefox.com

OR

If you prefer Firefox ESR: http://www.mozilla.org/en-US/firefox/organizations/all.html

Add code to the userChrome.css file below the default @namespace line.

• http://kb.mozillazine.org/userChrome.css

The customization files userChrome.css (user interface) and userContent.css (websites) are located in the chrome folder in the Firefox profile folder.

• http://kb.mozillazine.org/Editing_configuration

@namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"); /* only needed once */

#personal-bookmarks .bookmark-item > .toolbarbutton-icon { display:none!important; }

dear cor-el

i do this but the icon is still showen

You can use this button to go to the Firefox profile folder:

• Help > Troubleshooting Information > Profile Directory: Show Folder (Linux: Open Directory; Mac: Show in Finder)

Make sure that the file name is userChrome.css and that you have saved the file as a plain text file and not in another format like RTF.

• http://kb.mozillazine.org/Editing_configuration/Troubleshooting
• http://en.wikipedia.org/wiki/TextEdit