LinuxQuestions.org - [SOLVED] questions about syncing Mega cloud

I'm running Xubuntu 15.10 and I got Mega cloud. I got the website okay but there are all these other options. My questions:

1) When I go to upload things it says: 'for enhanced security install our browser extension and load mega from your computer rather than from our servers.' Is it a good idea to get this browser extension?

2) It's asking me if I want to 'backup Master key.' Do I want to do this?

3)When I uploaded a folder it asked me if I wanted to use Megasync. Said it would make things faster. Do I want to do this?

4)When I went to sync my two computers, I chose Ubuntu 15.10 (I have Xubuntu 15.10 and there was no choice for it.) and then ran their command in the terminal and got:

Code:

gregg@LG:~/Desktop$ sudo gdebi megasync-xUbuntu_15.10_amd64.deb

[sudo] password for gregg: 

gdebi error, file not found: megasync-xUbuntu_15.10_amd64.deb

gregg@LG:~/Desktop$

From this screen (see screenshot 50) I clicked on the Nautilus Extension thing and that led to this (screenshot 51). Should I just go ahead and open that with the Ubuntu Software Center?

5) On Firefox, Mega offers an extension. Would it be a good idea to get this?

Thanks.