No clue about Safari but Firefox dies under these conditions, and I'm not interested in Chrome given not only Google but their 'vision' for the future of that browser including native anti-ad blocking. Opera was okay, but I enjoy the privacy features of Brave. Native ad-block, tracker blocking, etc that can all be customized per site in literally two clicks. Lion->Third Party Trackers for instance would allow me to enable third party trackers exclusively on Hacker News if, for some reason, I wanted to. Pretty cool stuff.
The only related issue for me recently was a failure to restore a session after Firefox forced a restart for an update. That's the behavior that chases me back to Brave on other systems (where it's not as easy to `tabs.sh > current_tabs` just in case).