I had a misconception about Virtual Private Networks, I thought from an article I read extolling the benefits of it, that it protects your data from others when you are using public wifi, what happened to me was that it put a malicious extension on my chromebook, when I signed in under my own name (perhaps because I installed that as a browser) I could not connect to the internet, although I could as a guest.
Not only did it stop my computer from connecting with the browser in my home, it also did my friend's comp., (I managed to convince a friend who had a brand new chromebook with no usage to come over only to see if it was my wifi or my computer-did NOT have her download the app ) and when I went over to my tenant's place to use their wifi (my car wouldn't start to go elsewhere and my cell didn't work, NOT a good day) my computer wouldn't connect with theirs either and for awhile neither did my friend's, although it finally did over there, although mine would not, but when I went back to my house, I was able to use my computer ONLY when I signed in as a guest. Well these are all the problems that it caused, because what it was a malicious extension.
When I installed it, something strange happened, a box popped up, with a woman's name and IP address and asked for gmail address and new password created for their site (NOT the one they emphasized to your account-when you sign up you do need to let them have access to your info, something I normally wouldn't do so I don't like to sign up with Facebook accounts) but since it was for computer "security" I did. I entered the password twice, when it didn't seem to work I closed the box, when I went to my email Tunnelbear had sent me an email to verify and was surprised because I wondered how I got the pop ups when I didn't verify. There is nothing on the internet about Tunnelbear hacking into people's account et al, but it could be that THEY were hacked and people are installing malicious extensions. They only have an email option and despite my emails telling them to please contact me right away and it being very urgent, over four hours later they haven't probably because I was not a paid subscriber or maybe not even on their roster, cause I wasn't sure if I had verified but thankfully we have live help on Google Chromebook help desk, so now what is following is what to do, when you install it and you can't do anything on your computer. It did say something on the bottom about installing extension for Tunnelbear, but that had gone on for two hours, but it helped the tech agent.
First you need to do a hard reset, which is pressing the power key and the round circle arrow key. Computer goes on and off and after it stop doing that, you need to go to the settings in the upper right hand corner with the three lines, in the drop down menu, go to more tools and in the drop down from that, go to extensions, Tunnelbear shows up as an extension and you just trash that (don't forget to hit delete in the pop up box). Once you do that, I think, you hit the hard reset again, where computer goes on and off, and then it works like normal again. (I know it seems simplistic to go into such detail but this helps to remind people what to do, believe me I have friends who need to write EVERY step.)
Well, I hope this helps someone, was so distraught at what I thought was my stupidity that I ruined my computer, that I didn't think of going to the forums which given the circumstances (since I couldn't call from the my sign in browser on my computer but the guest sign in where they couldn't see the problem, afraid they couldn't help) made sense but when I went on here to post something that would hopefully help someone in the future ,when I put in Tunnelbear in this help search engine, nothing like this was on there.