I open a new window for each "task" and open tabs in that window, if it is non trivial I also move that window to a new Desktop/Space. When I want to shelve a task I bookmark all the tabs in that window into a dedicated folder then close the whole window and the desktop.

you should try amna, which basically automates that process. You make a task, it gives you a chrome window for the task and syncs your work. You can then close the browser, and the data is saved.

http://getamna.com

There is a browser extension called onetab that does this for you.

The issue i find is that even if you create the perfect system, you still rarely m go back and revisit these tabs kept open.

Try amna - https://getamna.com.

It can make this a little better by storing the tabs as part of a task. Soo you can get back to them as part of a context rather than just a link.

I've used this extension for doing mass closes: https://addons.mozilla.org/en-US/firefox/addon/sorted-tabs/

As a bonus you can arrange URLs by name, url, or time next to each other, so it's usually fast to churn through related or duplicate tabs.

> Ctrl-F4 close them. Press and hold Ctrl, then F4 them one at a time.

Ctrl-F4 shuts down entire browser, Ctrl-W closes each tab with a press of w. This is behavior in Ubuntu and it holds true for most application windows.

Alt-F4 closes the entire browser, and indeed Ctrl-F4 closes the current tab. (Just tried it out, I've always used Ctrl-W for that.)

My bad now I tried the Ctrl+F4 and yes it works exactly the way OP said. I assumed he was talking about Alt+F4 :)