Re: Firefox 43! Now Using Three Times More RAM!
"Firefox 43! Now Using Three Times More RAM!"
More realistically probably 1.2-1.5 times as much. Depends how they hold refs to Javascript in memory. Running a 32-bit app on a 64-bit OS isn't free either and goes through thunks and shims so it's not all one way. In addition 64-bit programs have access to more registers so they might perform faster despite their higher memory overheads. It's probably worth going 64-bit if you have 8GB or more.
People make a big deal of memory consumption but modern browsers including Firefox take the reasonable stance that if you have free memory that they may as well use it to improve performance.
Biting the hand that feeds IT
