Anyone who is familiar with the Thunderbird email client on a Mac, Windows or Linux will probably want to take a look at Thunderbird Mobile. Basically, the new app is worth trying for anyone who doesn’t want to depend on apps from mail providers like Gmail or mobile phone manufacturers like Samsung and Apple. Thunderbird Mobile has just emerged from beta testing and been released in the first regular version (8.0) – initially only for Android, but an iOS version is planned. Mozilla did not start from scratch when developing the new app: They joined forces with the K-9 project, a popular email …