about:memory has been gradually improved over the last two years.

mikecane · on May 14, 2013

Whoa. I just peeked at that and was astonished to see:

├───68.22 MB (28.62%) -- window-objects │ ├──41.12 MB (17.25%) -- top(https://twitter.com/, id=55)/active │ │ ├──39.86 MB (16.72%) -- window(https://twitter.com/) │ │ │ ├──18.17 MB (07.62%) -- js │ │ │ │ ├──18.13 MB (07.61%) -- compartment(https://twitter.com/)

Just to run Twitter uses a ton of memory?

bzbarsky · on May 15, 2013

Twitter loads a huge (several megabytes of source code, last I checked) blob of JS into every single twitter.com page. Then it loads a bunch of data, including what is basically a custom layout engine for some of their UI widgetry.

So yeah, running twitter uses a ton of memory....

yogo · on May 15, 2013

~100MB for gmail.