I recently downloaded Firefox 4.0 and noticed a lot of changes, one of which was that the feature to “save and close” was missing when I went to close down the browser. I recently read an article on Techie Buzz about some tricks for the new Firefox 4.0 and they had a link to get the feature back in Firefox 4.0. Here is how you do it:
Open a new tab and type about:config and click “I will be careful, I promise”
Then type quitewarning in the filter box. Double click the entry browser.showquitwarning which will change it to “true” Then you are done! Happy surfing and if you want more Firefox 4 tips, click the link above “tricks for the new Firefox 4.0”