A quick look at the features and improvements in Firefox 5 however reveals what the Mozilla foundation did to accomplish the fast release: There are some significant upgrades under the hood, but this is really more of a 4.1 release than a full new version of the browser.

However, the big news is that the release of Firefox 5 may finally solve the stability issues users have complained about since the . When the Mozilla foundation released the last major overhaul of Firefox back in March, it was a huge step forward for the browser. The update brought with it a host of new features like improved tab navigation and the ability to sync bookmarks across multiple computers.

Perhaps most importantly, Firefox 4 improved the speed of the browser which had been lagging in recent years.

However, Firefox 4 also brought a lot of complaints about random crashes. A user named bigdaddyken on posted that "firefox 4 crashes constantly, on opening, different pages, etc. Old firefox worked fine." More than one thousand users reported the same issue, and this report was only one of many crash complaints on the forums.

PCWorld users have also had problems with the browser. In a comment on our early , user xvMATTLEEvx said "Sure it has added features but that is just to keep up with everyone else it's nothing innovative like Mozilla used to be. On top of that Firefox 4.0 is suffering the same crashes and memory spikes Firefox 2.0 suffered. I am talking without add-ons not with add-ons."