@Heckyel: Thanks, i added DuckDuckGo, but this method did not worked with google. How can i add google?
@zapper: I don't want to add plugins for that. SearX is useless, i cannot do any search, it's just keeps crashing with error "google (unexpected crash: CAPTCHA required) ". For youtube, i have my own youtube frontend. Is this serious, that one cannot just edit the search engines in Iceweasel? Not even outside the browser, with a text editor?
It depends on the searx instance. I use this one and have no issues: https://search.disroot.org/
Which ones have you tried anyways? Regardless though, you do realize, google spies on you right?
They sell your information, etc...
but I assume you know this, right?
btw, don't say searx is useless without trying more than the ones that Hyperbola distributes within the browser by default. Those ones suck anyhow...
I hope emulatorman adds the one I mentioned and arguably, others which actually work. ;p
The Stable Secure Libre Arch!