Task Managers in Browsers
Browser task managers can be a handy tool when digging up information about web performance.
Browsers nowadays include even their own task managers. There is one in Firefox and Chrome-based browsers (Chrome, Chromium, Brave, and likely some others).
It looks like so in Firefox:
It’s accessible by, for example, typing about:processes into the address bar.
Chromium has a similar task manager:
It can be opened by pressing Shift + ESC or by opening Menu (three dots) -> More tools -> Task manager.
There is even more you can see, the screenshots above are just a default view, but I can right-click (in Chromium) and get more columns:
Browser task managers can be handy when you need to know how much resources a particular tab consumes. That can be an estimation of how much resources a website opened in that tab consumes.
It can sometimes happen that a frontend app needs to do something resource-heavy (which is usually not a pleasant experience for the user), which might show up here. I recommend having a look, it’s another useful resource for a tester.
