beginner problem with proxies

just started today using scrapebox.  I have a problem with setting up proxies.  
IF i use proxies as http i can harvest and use search engines but, i cannot scrape (as far as i know)  http sites, only https.
IF i use proxies as SOCK i can scrape  any site (as far as i know)  but i cannot harvest or use search engines.

any idea why?
its a bummer, as i have to manually switch form http to sock

(i use proxies on another tools and are very good , are not banned on G or …)