I accidentally uninstalled libraries for the DE(xfce4) on manjaro
 

My system boots on tty1 and if i press startx, it will get me to the GUI but with no full functionality ( no wifi , cant insert a USb , cant see my taskbar , ... )

please help me guys

This post is suspect to me for a number of reasons.

First you only say what's happened with a very basic description of what you done, and then there is the very obvious answer, given what you say you done...

But anyways, if you "uninstalled libraries", then had you considered perhaps re-installing those same libraries ?

Hi mariokaram,

Welcome to LQ.

I agree with jsbjsb001 - simply reinstall the entire DE.

Manjaro being Arch-based, I would :

.... and then for good measure, update your system:

... This second step is optional, but I tend towards keeping my Arch system up to date.

... Restart and let us know how things go.

that's debatable.
one of the rules of arch linux is: "partial updates are not supported" - which essentially means:
always run 'pacman -Syu' before you install anything.
i can only presume that that applies to manjaro too, unless specifically mentioned otherwise.

Hey ondoho - 2 schools of thought on this ...

Although your comment concerning partial updates is right on, simply installing a new application or something like xfce4 will be fine, since pacman will ensure dependency management.

On the other hand .. If one chooses Arch as a distro to begin with, it is likely due, in part at least, to its rolling release nature, which presumes most users will keep it as up to date as possible.

Cheers !