Yeah I dunno man. I don't use networking in Safe so I never tried.
I will say that I've cut my tabs from 27 down to 18 and one of those is article related so it's more like 17. Shouldn't matter too much though since I'm running 8Gigs of RAM and end up using mebbe 4Gigs while I'm browsing. Not sure what it is but I did run my SiSoft Sandra Lite to benchmark my RAM. Did it while Folding no less and had not a single issue while scoring over 11.25 or something like that. I'm hoping this is just a minor hiccup cause I really liked v6. Didn't have any of these load lags. Last one was so bad it locked up both WF and Safari. I made the mistake of trying to listen to a KNBR Podcast since I can't listen to it in 64bit browser because the Flash doesn't work well with that site. One of the rare times I had to punch the reset. Immediately went to Safe to hit the system with all my AV progs running concurrently. If AVG Internet Sec, Malware Bytes and Spyware Doc can't find it, it's a good bet it doesn't exist.
If it continues to happen though, I'll go into Safe w/Network Access and see what happens there. I'm gonna assume that if it doesn't do it there then it's a cookie or something else. Would suck if it was my connection, but I've even reset the wireless a couple times even when it shows me 4 out of 5 bars and says it's got an axcellent connection and that it's working optimally in the diagnostic systems check.
Apologize for the book but more information is better than lacking information.
All the info is great don't worry. I meant put Waterfox into safe mode :P. Waterfox>Help>Restart with Add-Ons disabled. I'm not sure how many add-ons you have and if any of them could be causing the problem, so I was just curious to see how much it would affect your memory usage. But some websites are very intensive and take up huge amounts of RAM, especially if they have things such as G-Zip compression, which lots of forums do to conserve bandwidth. Imagine how intense a whole HTML5 media website would be!