Solved Browsers , matters if they are x64 or not?

[CaLy]

Hello (again).
Now i am using Vivaldi 64 bits. But sometimes i dont like it. or i cant find some things i had easy in Opera.
So, the basic questions:
whats the basic/main difference between vivaldi / opera / firefox, etc?
Does it matter if you have a x64 processor and o.s. and running x32 apps? or its better to run x64 apps?

Of course, take it from a newbie.

 

[lolnothankyou]

You won't be able to tell the difference. More info here:

Supplying 64 bit specific versions of your software

Is there any real point compiling a Windows application as 64-bit?

 

[CaLy]

thank you for the links
I will take a look later.