What exactly does error console stuff mean?

[AmyR7]

I have no idea what any of these errors mean at all.
Under error console-
Warning: Expected declaration but found '/'.  Skipped to next declaration.
Source File: http://www.webkinz.com/assets/stylesheets/splash.css
Line: 178
Warning: Error in parsing value for property 'cursor'.  Declaration dropped.
Source File: http://www.computerhope.com/forum/Themes/default/autoTooltips.css
Line: 13
Warning: Error in parsing value for property 'font-size'.  Declaration dropped.
Source File: http://static.ak.fbcdn.net/rsrc.php/zBNIU/lpkg/24zuuo0c/en_US/141/156927/css/8miun4q7u6cko4os.pkg.css
Line: 185
Warning: Error in parsing value for property 'filter'.  Declaration dropped.
Source File: http://static.ak.fbcdn.net/rsrc.php/z7NG3/lpkg/8669a2b0/en_US/141/160104/css/a264p1a9cnscssok.pkg.css
Line: 228
Warning: Error in parsing value for property 'cursor'.  Declaration dropped.
Source File: http://static.ak.fbcdn.net/rsrc.php/z7NG3/lpkg/8669a2b0/en_US/141/160104/css/a264p1a9cnscssok.pkg.css
Line: 229
Warning: Expected color but found 'none'.  Expected color but found 'none'.  Expected end of value for property but found 'none'.  Error in parsing value for property 'border'.  Declaration dropped.
Source File: http://b.static.ak.fbcdn.net/rsrc.php/z18WM/lpkg/dapbcrll/en_US/141/159056/css/5dngh93opg8wos48.pkg.css
Line: 168
Warning: Error in parsing value for property 'background-position'.  Declaration dropped.
Source File: http://static.ak.fbcdn.net/rsrc.php/zBNIU/lpkg/24zuuo0c/en_US/141/156927/css/8miun4q7u6cko4os.pkg.css
Line: 206
Warning: Expected end of value for property but found 'top'.  Error in parsing value for property 'position'.  Declaration dropped.
Source File: http://static.ak.fbcdn.net/rsrc.php/z96MF/lpkg/42sa3msb/en_US/141/159058/css/avqf3zq4sh4o4gg8.pkg.css
Line: 158
Warning: Unknown property 'zoom'.  Declaration dropped.
Source File: http://static.ak.fbcdn.net/rsrc.php/z7NG3/lpkg/8669a2b0/en_US/141/160104/css/a264p1a9cnscssok.pkg.css
Line: 20
Warning: Unknown property 'word-wrap'.  Declaration dropped.
Source File: http://b.static.ak.fbcdn.net/rsrc.php/z1NGP/lpkg/59i9oy5i/en_US/141/159927/css/1uom3yh8tp7o4so4.pkg.css
Line: 540
Warning: Expected ':' but found '0px'.  Declaration dropped.
Source File: http://b.static.ak.fbcdn.net/rsrc.php/z1NGP/lpkg/59i9oy5i/en_US/141/159927/css/1uom3yh8tp7o4so4.pkg.css
Line: 671
Warning: Error in parsing value for property 'overflow'.  Declaration dropped.
Source File: http://b.static.ak.fbcdn.net/rsrc.php/z6F40/lpkg/56vv4f6i/en_US/141/144622/css/1zd2xxizi6tc0ko4.pkg.css
Line: 173

There are so many others it lists too same as above mostly but in different lines.
Like I said, I have no idea what any of this means. I'm using my mom's computer at the moment. Mine does the same things too.
Do I need to call a repairman for this? and what do I tell them the problem is if I do call? I don't even know how to explain what  is going on since I don't understand any of it.

[Griff]

Huh? Requesting more info. 

All of that is debugging junk for the developer of a website. Where are you seeing all of this? Is it on one site or a lot?

If it is just one site, then someone that runs that site screwed up their code. The average user isn't meant to see all of that.

[Broni]

What is your exact problem?

[kpac]

This is the Firefox Error Console. Press CTRL + Shift + J to close it.

You don't have to worry about any of these messages. The websites that have coding errors will just show these. It's basically the same as IE's "Done but with errors".

[AmyR7]

Huh? Requesting more info. 

All of that is debugging junk for the developer of a website. Where are you seeing all of this? Is it on one site or a lot?

If it is just one site, then someone that runs that site screwed up their code. The average user isn't meant to see all of that.

It happens on every site. Even on this site I noticed it has this site listed in the above list.
Also, what exactly does Debugging mean? I get that message popping up asking me if I want to debug is one of the options every time the browser tries to crash, I have an option of debugging. I thought it was something that is dangerous to do. In this one book we have on Computers, there is a section that lists the 10 big things you don't want to do to a computer. Debugging is one of them also something called an Fdisk which we had no idea what it was for, years ago with one of my older computers that kept having problems saying it can't find the operating system. The tech at Compaq had me do an Fdisk, and said it wouldn't erase anything. Because before doing it, we asked several times if I need to back things up before doing it.
They said no.

[kpac]

Yes, this is what you get for CH:

Code: [Select]

Warning: Error in parsing value for property 'cursor'.  Declaration dropped.
Source File: http://www.computerhope.com/forum/Themes/default/autoTooltips.css
Line: 13
Definition of Debug

[AmyR7]

I went to what you gave me about debugging, but I don't understand it.
There are so many different definitions. Which one is the correct one?
How would you fix the problem or is it something I don't need to worry about?

[kpac]

locate and correct errors in a computer program code; "debug this program"

This is the definition you are looking for.

How would you fix the problem or is it something I don't need to worry about?

This is in no way your problem, and you can't fix it either.