wordpress search

To change number of posts displayed:
Admin -> Reading

searchform.php for most themes search action

misunderstanding. i was looking for a way to this over the url

example:
bla.com/?sourceid=Mozilla-search&s=myQuery&limit=100&highlight=yes

anyone?

well, for your first question, there is a plugin:

https://www.ads-software.com/support/6/11211
“Change the number of posts per page displayed for different page types. by rboren & brehaut.”

and another: https://mattread.com/projects/wp-plugins/custom-query-string-plugin/