How do I install or update my plugin/add-on? hc/en-us/article_attachments/207490787 Prerequisites hc/en-us/article_attachments/115009464987 Android Email Configuration hc/en-us/article_attachments/115004314233 Windows 10 Mail Configuration hc/en-us/article_attachments/360016652792 Clearing Cache in Internet Explorer hc/en-us/article_attachments/207490787 Prerequisites directory en-us article attachments |