Avira Uninstall doesn't completely remove the product

After reading through some of the other channels and realising I'm not the only person having this problem.  That it seems in fact as if Avira is well aware of the problem and REFUSING to let users know how to solve it, I am convinced that ethical business practices are not at all followed by Avira.
Avira was installed as bloatware together with a password manager that I tried out.  After uninstalling it - every time a new browser opens (with for example a user who has not used that browser before,) I get a notification that Avira was installed with it.

I hope you realise that this proves to everyone that this product should be avoided at all costs.  In fact - I'm going to a few public forums and asking around if people are aware of the fact that this program refuses to uninstall completely with a normal uninstall and when asked about it, the company refuses to give instructions of how to uninstall it completely.

The irony is that you pretend to be an anti-malware product while you are acting like malware that is difficult to eradicate from my system.