In the Menu bar at the top of the screen, click Firefox and select Settings (select Preferences on older macOS versions).Click the menu button and select Settings.
Click on the Sync tab.
Click Set Up Firefox Sync.
Under I already have a Firefox Sync account click Connect and the code to add this computer will be displayed.
At the top of the Firefox window, click the Firefox buttonclick the Tools menu and select Set Up Sync. The Firefox Sync Setup window will open.
Click I Have an Account.
The code to add this computer will be displayed.
On the menu bar, click the Tools menu and select Set Up Sync. The Firefox Sync Setup window will open.
Click I Have an Account.
The code to add this computer will be displayed.
At the top of the Firefox window, click the Tools menu and select Set Up Sync. The Firefox Sync Setup window will open.