In my recent experience: definitely yes, though not significantly worse. Unless you have [many] hundreds of tabs open (which I do as I have neither executive function nor organisational skills), or have a machine with very limited RAM, I don't think you'll notice a difference.

This is anecdata, of course, take with a pinch of your preferred flavouring powder.

Yes: https://www.phoronix.com/review/firefox-chrome-2026/4

> Chrome also came in at slightly lower memory consumption across all the benchmarks with total memory usage on average at 4.67GB to Firefox at 4.83GB.