Firefox 157 is the biggest change to how Mozilla's browser looks in years. If you haven't restarted Firefox lately, you might not have it yet. Mozilla started rolling it out to everyone on Tuesday 29 September, US time, then shipped a quick 157.0.1 fix on Tuesday 6 October. The new design, which Mozilla calls Nova, brings refreshed colours and icons, new themes and the return of a feature plenty of people asked for. That's Compact Mode.

Illustration: The Gold Standard