You can use Shift+Escape for that

Shift+Escape made me realize HTTPS Everywhere[0] is by far my most resource intensive extension. Most extensions sit around the 20MB range (of memory usage). uBlock is in the 50MB range. HTTPS Everywhere is in the 100MB range and goes to 150MB sometimes. I love the extension but I do wonder how it manages to use so much memory...

[0] https://www.eff.org/https-everywhere

They load the entire rule dataset into memory.

https://github.com/EFForg/https-everywhere/issues/1775

Shift + Esc doesn't seem work for me (Chrome 53 dev), and there are a few open bugs about the shortcut not working. Opening Task Manager from the menus works fine though :)

Yeah I often fail to open the TM in Chrome/OSX.

This should be trivial to catch with CI tests...wonder what went wrong there.

That's true, for some reason the shortcut does not always work for me either on Windows and on OS X.

doesn't seem to work for Firefox :/

It has? I have Chrome version 51.0.2704.106 m (64-bit) and I do get the task manager with SHIFT+ESC, with numbers for each tab and GPU and for some extensions for CPU, network and memory.

What you link talks about chrome://memory, which was indeed removed, but the parent post only says

    > You can use Shift+Escape for that

Whoops, sorry, my bad. It seems the "Stats for nerds" link (and the page it linked to) accessible via the task manager was removed, not the task manager itself. Apologies for the misinformation!