Skip Registration on Sites [MUST SEE]

So sometimes you are to lazy to login or u forget password and you quick need some information.



So good way is faking UA <- User Agent
I will show u example of firefox

Type in URL bar following:
about:config
then u should see alot of options which can be changed
1cm down u will see "Filter:"
Type in box 

"useragent" without quotes
We need to change just 

general.useragent.extra.firefox
Deafult is Firefox x.x.x or something like that 

So how to bypass login on that websites (also on h4cky0u)?
just double click & type in that field


Code:

Googlebot/2.X How Google crawls my site