I switched to Firefox in the end of 2019, and I don't think it's entirely clear cut, slowness-wise.
In my experience, Safari slows down to a crawl if I open more than 5 or 6 tabs at once, especially something sadness inducing (think new reddit); and it's very eager to.. dump things from memory? I am not sure what happens, but as I switch these gargantuan tabs, it seems to re-draw things a lot.
Firefox handles that kind of thing like a champ. Add uBlock origin, and I have my almost ultimate browsing experience: JavaScript off default, enabled as I see fit.
There is one nasty oddity where I often found myself having to slow down for Safari: when I edit URL query parameters. If I hit return before some indecipherable arbitrary time, which I guesstimate by the auto completions showing up, Safari will throw away my changes and merely reload the current page. I have unchecked and toggled all possible autofill or search checkboxes in Safari settings, and it still happens. This and the extension apocalypse are what drove me away from Safari. In contrast, I've got all the extensions I want, and never ever have to slow down for Firefox.
Well worth giving it a shot for a few weeks. Container tabs are also awesome.
In my experience, Safari slows down to a crawl if I open more than 5 or 6 tabs at once, especially something sadness inducing (think new reddit); and it's very eager to.. dump things from memory? I am not sure what happens, but as I switch these gargantuan tabs, it seems to re-draw things a lot.
Firefox handles that kind of thing like a champ. Add uBlock origin, and I have my almost ultimate browsing experience: JavaScript off default, enabled as I see fit.
There is one nasty oddity where I often found myself having to slow down for Safari: when I edit URL query parameters. If I hit return before some indecipherable arbitrary time, which I guesstimate by the auto completions showing up, Safari will throw away my changes and merely reload the current page. I have unchecked and toggled all possible autofill or search checkboxes in Safari settings, and it still happens. This and the extension apocalypse are what drove me away from Safari. In contrast, I've got all the extensions I want, and never ever have to slow down for Firefox.
Well worth giving it a shot for a few weeks. Container tabs are also awesome.