How to use userscripts in Chrome/Iron with tampermonkey

How to use userscripts in chrome with tampermonkey.
Some userscripts will work without tampermonkey, but if you want to use all functionality a userscript has to offer, you should use tampermonkey that is also very helpful to manage/update your scripts.
written description for chrome, opera etc. can be found here:

[JonatasMonte]

MAN I LOVE YOU, I REALLY REALLY LOVE YOU! I was almost pulling my hairs trying to figure out how to use scripts and even thinking I had some dumbness problem, then I found your video and it SOLVED MY PROBLEM! Thank you so much for solving my troubles now I can sleep.

[jubedi]

I hope it was you who I answered on deviantart instead of here...
In any case I shouldn't let this comment stand alone here^^
So, if anybody encounters the same error, you probably need to reload the page after installing the userscript. keep in mind that the script will only be listed on pages that are affected by the script! In case of dev_user_inf there is a line at the beginning
// @include h t t p : //* . deviantart . com /
That tells to only run on deviantart's subdomains.

[jubedi]

well, that was the goal of this video. How to install userscripts in general, not how to use a specific one^^
I'm also sorry for the late answer, but your comment somehow slipped my notifications...

[jubedi]

So you installed Tampermonkey first, then went to the userscripts. org-page, clicked on the install-button and confirmed the message? Have you taken a look into tampermonkey's "overview" or "options"? There should be a complete list of all userscripts installed. if it isn't there, it wasn't installed successfully. It also should NOT appear within your lists of extensions as then you have installed it without/before tampermonkey.

[PeepeePoopoo-qjbs]

when i try to download the gaddon's button it doesn't appear on tampermonkey and when i click on the tampermonkey logo it says no script is running! HELP

[blink]

I need help, the script i'm trying to install doesn't have a download button. I'm trying to paste the script but I don't know how to save it.

[jubedi]

Well... as far as I can see it, there are 42 scripts available for that MMO... Maybe the script is broken? As it says it is enabled, you could open your console (ctrl+shift+j and reload afterwards) and look for errors. Could you give me the name of the script, so I can take a look at it myself?

[TheCoolneeraj]

you just installed script, did not show how to use it

[mamataya]

i have it installed and i enabled it, but i click on the tampermonkey icon and it says no script is running, help?