Blocked start page change in Firefox

Question

Mozilla Firefox

Friends gave the laptop for inspection.

Mozilla Firefox has a home page mygame.org.ua installed (via the bit.ly shortcut). I change the start page in the settings, after restarting the browser, the start page leading to mygame.org.ua is restored again.

I checked my computer for viruses with 2 antiviruses, it did not help. Disabled all plugins, didn't help. I looked in the registry for the name of the site, did not find it. I don't know what to do, where to go next.

Any ideas?

Thanks in advance!

Answer 1

Try the following:
1. Set your home page.
2. Open the prefs.js file in your profile.
3. find the line with the page you installed (it should look something like this -user_pref("browser.startup.homepage", " www.whatever.com/ "
4. Create a user.js file and paste this line into it.
5. Save file user.js in the same folder as prefs.js
6.PROFIT!!!
*Source

Answer 2

for certain in user.js also setup lies.
You remove by removing from pref.js. when the browser loads, it picks up the settings from user.js

Answer 3

Perhaps the files with the config (user.js, pref.js) have a read-only flag, check