Don't know why you are looking for that to fix a problem with your bookmarks, but here is info about it being deprecated: https://www.torproject.org/docs/torbutton/index.html.en https://blog.torproject.org/blog/toggle-or-not-toggle-end-torbutton

If you explain your issue with your bookmarks with a bit more detail we should be able to help you sort that out.

Thank you for your help. I've found the tip (unfortunately in Polish) reg. this torbutton. Now I know is no more supported. https://support.mozilla.org/pl/kb/Znikanie%20zak%C5%82adek#w_zakaaadki-zniknloaay-po-aktualizacji-firefoksa

It's difficult for me to explain cos I'm not a developer or expert :(. I've used fast dial extension (before the actualisation of FF). When I opened a browser I had in the browser bar the icon of fast dial. Everytime I opened new tab I had all favourite sites on the page (shortcuts). Now the icon of Fast dial disappeared and all shortcuts as well. I don't know if I wrote clearly. :(

Was Fast Dial working in Firefox 42? Or did this issue start with Firefox 43?

Do you have the latest Fast Dial 4.12.2 version? https://addons.mozilla.org/en-US/firefox/addon/fast-dial/

Works for me when I just installed it! I found the Icon in the expected location = "Additional Tools and Features" in the Customize palette.

https://support.mozilla.org/en-US/kb/customize-firefox-controls-buttons-and-toolbars

Today I uploaded the latest version of Fast Dial 4.12.2. And it works as you have written: when I open new tab, the empty places for bookmarks are displayed but not those old ones I customized previously. Now I have Firefox 43 - I used computer last time 2 days ago... :( Thank you very much for your help! :)