Newcomers report to Alibaba Cloud. Please help me ......

Newcomers report to Alibaba Cloud. Please help me ...... -- Linux general technology-Linux technology and application information. For details, refer to the following section. Since the installation of linux6. 0 system, start learning, WIN system always want to play games.
This is good, and most of them cannot be used.
Let's talk about surfing the Internet first. The red flag comes with firefox, but the version is too low. After the web page is closed, the program runs in the background, and an alarm is triggered when it is opened again, prompting that it has been run.
Directly unmount it, together with the dell-w4-i386 unmount, the Internet has checked, do not know what the program is useful, but do not Uninstall this, firefox is unable to uninstall.
Download the latest firefox. After decompression, you cannot install it. The key is that you do not know how to install it.
Fortunately, there is a firefox folder to be decompressed, and there is a running program in it, you can access the Internet. But there is no desktop shortcut file, and the icon is a gear.
I don't know how ..............
I plan to install Apple's safari. The result is. . You have downloaded wine and decompressed it. An error was prompted during installation. I checked it online and said that gcc needs to be installed.
Download the gcc-4.6.2 now, decompress 467 M, but still cannot install. No programs can be run this time. Why?
Help me ......