Thanks Anthony, I finally managed to solve my issue.
A Mac usually comes with apache pre-installed, so what I did now is: 1. My perl script modifies one HTML file (instead of several scripts) to contain the data I want to provide to my scripts. 2. My perl script then starts Firefox to open this HTML file (through http://localhost, served by the pre-installed apache) 3. My greasemonkey script, which is now a merge of all my previous scripts, sees that it's running on localhost, pulls out the data from the page and persists it. 4. My greasemonkey script, when called on one of my target sites, retrieves the persisted data. -- You received this message because you are subscribed to the Google Groups "greasemonkey-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to greasemonkey-users+unsubscr...@googlegroups.com. To post to this group, send email to email@example.com. Visit this group at https://groups.google.com/group/greasemonkey-users. For more options, visit https://groups.google.com/d/optout.