Bookmark2Toolbar от Darv

You can bookmark your favorite site in the toolbar:
1. Install this web extension;

2. Right-click on the extension icon;
3. Click Add current page;
OR
2. Left-click on the extension icon;
3. Add and save your favorite URL address;

4. The yellow star icon will be replaced with the favicon of the added site;
5. The next click on the icon will open your favorite site in a new tab.

Enjoy it ;)