Slow load pages at startup

I'm using Firefox beta, which I think is faster and prettier than the normal version, but in both versions, I have the same problem. When I open the browser, the home page appears, I select a web page to navigate (example, Facebook) and it takes about a minute to load the page, meanwhile, it is as if I never entered the url or clicked on the bookmark. After the first page loads, the browser works normally, very smooth and eficient, but this first load is a problem to me, because I usually need to do quick searches. There's any solution for this? Maybe a configuration? Or maybe my is my phone? My smartphone is a samsung core II, with android 4.4.2. Thanks