Firefox is famous for hogging up memory. If you are using 256 Mb RAM or lesser then your system hangs if you open a lot of tabs at once. Firefox does a lot of tasks internally like scanning for viruses, checking for updates of themes and addons and such, for which it needs RAM and that is the reason it hogs up so much memory. There is no automated way in Firefox to notify … [Read more...] about RAMBack Plugin For Firefox To Reduce RAM/Memory Usage