Is this a typo (80 x 3 = 240), or are you suggesting 30 tabs are deduplicated in some capacity?
[1] https://developer.chrome.com/docs/devtools/device-mode/overr...
Eventually what I did was configure my browser so it removes all cookies every time I quit it, which is more or less once a day. Also, I blocked third party cookies.
Which one you prefer depends on your taste. They are great for casual and quick form filling and testing, and save me from too much typing and clicking.
I use Edge btw, and it has few great features. There is a collection feature with a toolbar button. It can saves all the opened tabs for later use, no memory hogging and need to use 3rd party extension. Few other toolbar buttons which provides faster experience than chrome.
- uBlock Origin
- Cookie AutoDelete
- "I Don't Care About Cookies" (It auto-OKs cookie consent banners)
- Archive.org's Wayback Machine (A must have in this era of link rot)
Optional:
- Tablist (easily lets me copy out all the URLs of open tabs for 'later')
- User Agent Switcher (Needed less these days, but useful for exploring the DOM of mobile versions of sites)
Additionally, I have written a launcher for Chrome that creates shortcuts for Chrome with the --user-data-dir parameter[1] to enable me to have 100% isolated browser identities. I create and tear these down on regular basis. I started doing this, when I realised that multiple Incognito mode sessions running simultaneously actually share the same cookies and local storage.
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[1] https://chromium.googlesource.com/chromium/src/+/HEAD/docs/u...