There are a few reasons:

I haven't compared it in years, but Firefox's bookmark sync is better than Google's, it is a reason why I have stuck with it.

I think Firefox manages hundreds of tabs better than Chrome does as far as memory usage goes. I haven't used Chrome seriously in years, but people continue to complain about how RAM hungry Chrome is so I assume it is still an issue.

But Mozilla has been doing odd things that makes me question them. I would move to some Chromium based browser if ublock origin was... blocked... pun intended... because the web does prefer Chrome over Firefox. If this 3rd party browser is able to integrate some of the functionality of ublock origin that Firefox chose to remove; I would use it over the reasons I listed above in a heartbeat.

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prmph 5 days ago | parent [-]

It's only Firefox that is never satiated with however much memory I throw at it. Any time my machine slows, the solution is to kill Firefox. Not sure what exactly they are doing wrong.

	▲	heavyset_go 5 days ago \| parent \| next [-]
		Set `browser.low_commit_space_threshold_mb` and/or `browser.low_commit_space_threshold_percent` to something you'd prefer, and confirm that `browser.tabs.unloadOnLowMemory` is set (I think it is by default). The default settings are to allow it to acquire memory until memory pressure on the system reaches 5% free, at which point it will begin freeing memory. You can set a custom percentage or a specific amount of memory. That or just run it in a cgroup with a memory limit.
	▲	csdreamer7 5 days ago \| parent \| prev \| next [-]
		Are you sure it is not malware? When was the last time you changed the profile? Also, I have a ton of bookmarks and as I been slowly deleting them Firefox's performance has improved. This same giant size of bookmarks Chrome seems to sync out of order causing their placement to change. Ublock origin also does slow down the browser a bit on websites that.. don't.. have ads.
	▲	subsection1h 5 days ago \| parent \| prev \| next [-]
		Do you use Auto Tab Discard? https://addons.mozilla.org/en-US/firefox/addon/auto-tab-disc...
	▲	immibis 5 days ago \| parent \| prev [-]
		Go to about:processes and kill whichever website's subprocess is using the most memory. Sometimes it's the main process but more commonly it's a specific site. Looking at You, Tube.