How to clean up Chrome and Firefox?

Question

Google Chrome

Greetings. It all started with the fact that at home, with Firefox antivirus standing, it got infected with some kind of rubbish, which, when trying to open a link, transferred shops, tools to its resources, simply sabotaged the browser. I tried all antiviruses, all adware, cleaners, deleted Firefox, but still the browser remained completely crippled and inoperable.
Now a similar thing has landed on a work PC in Chrome. Stupid ads built into websites have appeared, about every fifth click tries to transfer somewhere, links stick. All extensions are old, there is Casper.
Is there something you can do to clean up your browser? Why, with such a wealth of antivariants, is there nothing that cleans browsers :(

Answer 1

Malwarebytes to the rescue.

Answer 2

Deleting FF itself is useless - it simply erases the binary. You need to delete the profile in the user's home directory, in AppData/Roaming/Mozilla/Firefox. Back up the Profiles directory, then just shoot the entire Firefox directory. Settings, plugins, bookmarks, of course, will have to be restored later from a backup.
And at the next setting, immediately after installation, install AdBlock and NoScript. By the way, NoScript is very good at catching situations when a site tries to redirect every Nth click to an ad - porn sites often sin this way - clicked on five photos - get forwarded to ads :D

Answer 3

see what in etc/hosts tried? once there, the malware changed the IP addresses
www.thewindowsclub.com/hosts-file-in-windows