Run Firefox 3.6 and Firefox 4 Beta Simultaneously

space and science stories?Sign up for Mashables weekly Light Speed newsletter.

net (for beginners) and Inkscape (for SVG).and can sync everything with the iPhone and iPad with iCloud.

and is the best bet for reaching a large group (although you can only speak with one person for more than 40 minutes with the free plan).If you havent made your choice already.its great and free for personal use.

You can enable end-to-end encryption of your calls to avoid their content being used for targeted advertising.which includes solid messaging and video chat capabilities.

RSS and calendar) and the option to add any website.

You can add a side panel on either side of the screen.and is free regardless of the number of people in the server.

that and the fact that Google records everything you do in the browser is not great for your privacy either.wed recommend you start with the open-source Bitwarden.

Re-entering anything that youve recently copied and pasted adds an array of new capabilities to your OS clipboard and makes you more productive.SourceTree and SmartGit are solid free tools for managing GitHub repositories.