Oh I gotcha. I do the same thing exactly. But occasionally I kill the browser and start fresh. I mean not restoring tabs. And the tabs I listed are what starts up or if I hit the home button.
I have noticed on Firefox where I have most of my tabs that memory usage gets huge and browser gets slow if I don't restart from time to time. Even a restart with restoring tabs.
at this point i have too reboot every day or 2 or my machine runs like shit. Granted it is 7 years old but its still and i5 with 16gb of ram and 1tb ssd and gtx980. Its ram really it ends up eaten by opera.
FWIW - I use 4 browsers.
Opera is only for Facebook. Nothing else.
Firefox is main browser with umatrix and ublock origin. Mostly for random sites I've never been and research / learning. Also for poat and everyday site where I can explicitly specify permissions (scripts, redirects etc).
Chromium is 2nd research browser for sites I find on firefox that need a lot of permissions.
Chrome - is browser for anything that doesn't run on Firefox / Chromium, like some of my online banking.
The system works great for me. I reboot maybe 1-2 times a month. Running Linux Mint and put in suspend mode when not using. SSD / 16GB RAM, discrete GPU. Reboots are mostly for kernel updates and such or the occasional desktop glitch with cinnamon (run dual monitors).
I'm embarrassed to admit it, but my problem is probably windows.
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