Thanks for the detailed report! Chromium actually uses the default font and font size configured on the system. You can change that in gnome-tweak-tool, go to "Fonts > Interface" and select a different font/size. I’ll mark this bug invalid as this is behaving as designed.
** Changed in: chromium-browser (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to chromium-browser in Ubuntu. https://bugs.launchpad.net/bugs/1686456 Title: Font size in tab titles too big compared to Windows since material design Status in chromium-browser package in Ubuntu: Invalid Bug description: Since Chromium's material design "update", font size in the tab titles is too large on Ubuntu 14.04 with Unity. It is way larger than it was on Ubuntu before the material design update, and still considerably larger than a current Chrome version on Windows 7, so this should probably be considered a bug. It makes less of the tab title visible compared to current Chrome on Windows 7 (and compared to old Chromium on Ubuntu) and as such less useful. See attachments for a comparison between Chrome 58.0.3029.81 on Windows 7 and Ubuntu's Chromium 58.0.3029.81-0ubuntu0.14.04.1172. On the screenshot in Windows 7, the title text "New Tab" is 47 px wide and 9 px tall. In Ubuntu, the same text is 58 px wide and 12 px tall. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/chromium-browser/+bug/1686456/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp