Firefox Community Forum

Currently my computer is defaulting to Yahoo or Google. Two symbols come up for Firefox on my desktop and both seem to open all the time. Please help me to get a secure connection with Firefox as I feel my Yahoo account has been hacked. Thank you.

I don't get any security from the master password or primary password because I set it on my mozila browser but when I open mozila, the browser asks to enter the password if you cancel, also I can visit my Facebook and personal mail id. actually, I used two browsers for personal use, I prefer to use mozila only for my primary passport but now it's not worthy .