Options description

Hello, it would be helpful if the settings/options page had additional information on what the settings mean.
For example, "open current page" for "context menu" is not clear to the beginner/user. "Show in address bar on error" is also not clear. Show what on which site's error?

Start at the settings/options page and review the descriptions for "open current page" under "context menu" and "Show in address bar on error." Done means the affected settings clearly explain what each option does, including which site's error is meant.

Written by the indexing model from the issue text.