Make Safari Tabs Easier to Identify by Adding Icons
Do you end up with so many tabs in Safari that it becomes impossible to read the truncated tab titles? There’s no shame in that and Safari 12—which comes with macOS 10.14 Mojave and is a free update for 10.12 Sierra and 10.13 High Sierra—now offers an option to add an icon representing the Web site to each open tab. Called a favicon this tiny image is usually carefully designed to identify its site and makes it easier to pick out the tab.
To enable the feature open Safari > Preferences > Tabs and select “Show website icons in tabs.” Unlike other Web browsers Safari never shrinks a regular tab to just the icon so you’ll always see the icon and some text.