[wkearney99]

Is there a way to disable a plugin? I don't need/want some sites being crawled, at all. Some come up while the linkgrabber is crawling other URLs.

[pspzockerscene]

There are multiple ways:
1. Completely disable hoster/crawler plugins via blacklist:
Settings -> Advanced Settings ->

GeneralSettings.crawlerhostpluginblacklist

and:

GeneralSettings.crawlercrawlerpluginblacklist

If you do not have any advanced knowledge about our plugin system, include all domains you want to block in both settings' lists.

2. Use filters. This e.g. allows you to block specific URLs vs all links of a supported site/plugin.
Settings -> Linkgrabber Filter