

I spent a while when choosing a laptop a while back trying to compare based on how many watt-hours the battery could provide, so I think that that’s a useful metric, but I don’t know how easy it’s going to be to mechanically dig that up for all the laptops out there.
So, the elephant in the room is Chrome killing ad-blocking.
I think that Firefox (and Firefox forks, like Zen Browser) have low-enough marketshare that websites that depend on ad revenue may just kill support for Firefox if Firefox does permit ad blocking.
https://gs.statcounter.com/browser-market-share
As of February:
Chrome: 66.3%
Safari: 17.99%
Edge: 5.33%
Firefox: 2.62%
The software used to view the Web in 2025 is really mostly under the control of either Google or Apple.