I have both models of the glass Big Mouth fermenters. I haven't had any issues with the seal on the old screw-top model, and I'm still using the original foam gasket. I guess maybe I got lucky there.
The newer fermenter is a better piece of equipment IMO - The glass is much thicker and there are volume gradations. The cap is kind of weird though. I think the key is to line it up really straight-on to be sure the silicone ribs go in straight and evenly. If you cram it in there off-kilter, it will want to pop back out.
If you be sure to use a fermenter with plenty of extra headspace, and try to ferment at a cooler temperature (65-70 degrees) you should have no problems in the future.
Welcome to brewing!