What if your problem is too complicated to summarize in one sentence, then what to you do to get help??
I had an account issue with my internet service and had to reinstall my AT&T Uverse modem under a new account number. This did not go smoothly, but I have internet service now. I was using Mozilla to talk to my modem. Yahoo.com was my homepage. Now, when I try to go to Yahoo.com (by any method or route), I get a tab labeled AT&T GUI with a completely white (blank) main screen below the tab with a narrow bar that says Mozilla is blocking a redirection to another site between the tab and the blank main screen. When I click on the link to tell Mozilla to allow the redirection, I get a screen from Yahoo that says it cannot find the web site I have asked for (yahoo.com?). This is the same on 3 different network/modem systems, but does not happen when I access other yahoo websites, such as mail or news and does not happen with yahoo.com if I use a different browser. Using options to put in yahoo.com as the homepage does not change this behavior, but installing other homepages (than yahoo.com) using options works fine.
Re: What if your problem is too complicated to summarize in one sentence, then what to you do to get help??
Firefox > Options/Preferences > Advanced > General : Accessibility : [ ] "Warn me when web sites try to redirect or reload the page"
The setting in "Options > Advanced > General" is meant as an accessibility feature, as you can see by the label of that section, so that people with disabilities or people who use screen readers do not get confused and is not meant as a safety protection to stop redirecting.