Firefox 61 Arrives With Better Search, Tab Warming, and Accessibility Tools Inspector (venturebeat.com)
On Tuesday, Mozilla released Firefox 61, the newest version of its web browser for Windows, Mac, Linux, and Android platforms. The release builds on Firefox Quantum, which the company calls "by far the biggest update since Firefox 1.0 in 2004." VentureBeat: Version 61 brings TLS 1.3, the ability to add custom search engines to the location bar, tab warming, retained display lists, WebExtension tab management, and the Accessibility Tools Inspector. Mozilla doesn't break out the exact numbers for Firefox, though the company does say "half a billion people around the world" use the browser. In other words, it's a major platform that web developers have to consider.
"Tab Warming" sounds like a great, well thought out feature! Yay!
Not necessarily.
Do you want the rendering of the current page to slow down because you flicked the mouse out of view, which happened to be over a tab?
Do you want the machine and network to slow to a crawl because you dragged the pointer across a great many tabs on the way to the one you wanted, and they all start rendering?
Do you want even higher memory/CPU use for a product that's already considered seriously bloated?