Greetings, this problem is a bit difficult to explain, here's what happens:

When I start Firefox, it sometimes just shows that the page is loading and it takes forever. If I open the same link in a new tab, it loads but when I try to refresh it in the first page, the page still does not load. It happens on every other tab (the first tab loads the page, the second - does not, then the third one loads again, etc). Sometimes it loads fine, sometimes I have to restart it. I can also fix loading when I duplicate a tab. Sometimes it works and sometimes it doesn't This inconsistent behavior makes it difficult to describe the steps to reproduce the situation. I have: ghostery, adblock and umatrix, open image in a new tab and a tineye addons, that's all.