Addon performance monitor is removed from about:performance?

[iByzod]

I think it's since 55b1 developer edition, there's only `Performance of Web pages` there. There is something like `Performance of Addons` before

Step to reproduce:
1. Download Firefox 55b1+ developer edition, mine is from here
2. Open about:performance


p.s. how to make Firefox autocomplete `about:` pages? When I type `about:con`, `about:config` is not popping out

[Happy112]

How to make Firefox autocomplete `about:` pages? When I type `about:con`, `about:config` is not popping out

In 'about:config' you can check the value of the preference : 'browser.urlbar.autoFill' (without the quotation marks)

[Lurtz]

It was removed because it was more misleading than helpful (e.g. when Firefox system addons were shown with a negative performance impact).

[Timvde]

How to make Firefox autocomplete `about:` pages? When I type `about:con`, `about:config` is not popping out

In 'about:config' you can check the value of the preference : 'browser.urlbar.autoFill' (without the quotation marks)

That still doesn't fill about:config pages, sadly about: urls don't get saved in your history.

It was removed because it was more misleading than helpful (e.g. when Firefox system addons were shown with a negative performance impact).

And it's also generally hard to measure the impact of legacy add-ons, which can freely inject code anywhere in your browser. But yes, because of inaccuracies. Mor context in this bug.