Please contact the developer of the add on for more information. At this time I have not seen functionality for importing favicons from Chrome.

You can find a "Reload Favorite Icons" in the Bookmarks menu drop-down.

• Tap the Alt key or press F10 to show the Menu Bar

If you click More of this extension on the about:addons page then you see this:

After installation you will find the addon in the bookmark menu and in the context menu.

Thanks, cor-el, but neither the Bookmarks menu drop-down nor the context menu show this add-on. I've tried uninstalling/re-installing without success. I do see the addon in the context menu if I use the bookmarks sidebar but using it on a link simply opens the web page to refresh the missing favicon...I can do that myself from the full-screen bookmarks. Once before (on a problematic profile) I could open the full-screen bookmarks, select a folder, click on multiple bookmarks, rt click on the context menu and the add-on would do it's thing on all the bookmarks without opening a single web page. Am I doing something wrong here?

Firefox 38.0.1, Windows 7

Do you see the extension in about:addons?

Does this URL give any response?

• chrome://faviconreloader/content/FavIcon.xul

Try to disable all other extensions in case one of them is interfering.

You can let all favicons expire to see if that makes the extension work.

You can open the Browser Console (Firefox/Tools > Web Developer). Paste the JavaScript code in the command line and press the Enter key to run the code.

• Toggle the devtools.chrome.enabled pref on the about:config page to true to enable the command line
• https://developer.mozilla.org/Tools/Browser_Console#Browser_Console_command_line

var fS = Components.classes["@mozilla.org/browser/favicon-service;1"]
         .getService(Components.interfaces.nsIFaviconService);
fS.expireAllFavicons();

Extension was listed in about:addons

Target URL showed nothing...see FAV1 (attached)

Disabling all other extensions.............no effect, but re-enabling them wiped all my bookmark bar favicons - restored by going to the web pages.....see FAV3

Running JavaScript.....no effect...............see FAV3

Hope these trials tell you something.

Thanks to guigs2...I have posted to Mozilla Addons Forum