Separators in Firefox Quantum Fx57+ without CSS/WEs/add-ons

[Aris]

There is an undocumented way to get separators even without any add-ons/WEs or custom CSS code.

The browser preference browser.uiCustomization.state saves and loads the toolbar configuration and keeps items and positions of uninstalled add-ons or non-available/deprecated toolbar content. This can be used to trick Firefox into displaying technically still present separators. They are only hidden from customizing modes palette.

1. Open about:config and search for browser.uiCustomization.state.
2. Copy and paste the string content into a text file.
3. Inside the (probably long) text string you will find an area, that looks like this
   

   Code: Select all

   ...,"nav-bar":["back-button","forward-button","stop-reload-button","home-button","urlbar-container",....

4. "Create" a separator by adding customizableui-special-separator[random_4_digits] inside toolbars configuration area, so it looks like this
   

   Code: Select all

   ...,"nav-bar":["back-button","forward-button","stop-reload-button","customizableui-special-separator1957","home-button","urlbar-container",....

5. Copy the new string back into browser.uiCustomization.state and restart Firefox.
6. Repeat for other toolbars btw. positions.

[smsmith]

Do the random four digits need to be different for each separator?

[Aris]

Yes they do. Firefox also always used different random digits in the past.