Avira free Mac

[Bigjez]

Per the Tom's Guide "Best Anti Virus for Mac 2015" I installed the free version of Avira. Each day I had problems going online using Chrome, safari and Mac Mail app on my new MacBook Pro. I looked for settings in the Avira program which would create this problem but found none. Upon uninstalling Avira my problem went away and everything went back to normal.
I would appreciate any comments on my problem. I really want protection for my laptop and Tom's review was glowing.
BigJez

 

[CWEric]

Reviews aren't the end all argument. I personally don't put much weight on website reviews as they have their own flaws. Webroot has good real customers experience feedback.
http/www.amazon.com/Internet-Security-Complete-2015-Device/dp/B00EZKNY8G/ref=sr_1_6?s=software&ie=UTF8&qid=1442510227&sr=1-6&keywords=mac+antivirus
http/www.amazon.com/AntiVirus-2015-Device-Year-PC/dp/B00EZKNYXG/ref=sr_1_4?s=software&ie=UTF8&qid=1442510227&sr=1-4&keywords=mac+antivirus

For free option there is Avast for Mac
http/www.amazon.com/Avast-Free-Security-2015-Download/dp/B00SKYNTA6/ref=sr_1_1?s=software&ie=UTF8&qid=1442510227&sr=1-1&keywords=mac+antivirus