Mozilla has released Firefox 3.0.19 and Firefox 3.5.9 updates. Mozilla Developer News have said that Firefox 3.0.19 is the last and final security update for Firefox 3.0.x branch of Firefox. There will be no more updates available after this one. All users of Firefox 3.0.x are therefore encouraged to upgrade to the latest version, Firefox 3.6, by either downloading it from Firefox official site or by selecting “Check for Updates…” from the Help menu. Users of Firefox 3.5.x are also encouraged to update to Firefox 3.6.2
After the release of Firefox 3.5, millions of copies were downloaded. But users of Firefox 3.0 are now in a dilemma of whether going for the upgrade or not. Since, they want to be sure before upgrading if their favorite add-ons, settings, websites etc are working properly in the new version. The best way to find out the answer is to try out a portable version first.
The portable version is the exact copy of Firefox 3.5 installed version, so it is great for testing out the features before upgrading. You can download the portable version from the PortableApps website. Though this portable version is only compatible with the Windows operating system, Linux users may try it on the Linux operating system using Wine.