Hello again, I have found the Java scripts Firefox 17 stumbles over. It's functions like: function top() { window.location.assign("#top"); } They refer to an "id" on the currant page. The example is supposed to execute a link to a mark named "top" on the currant page. I guess this function is not clear to Firefox 17 and it loses track of the page or the mark to link to. Anyway, I have rewritten the relevant links in HTML and everything is back to normal again. Best regards. Ferdi Stutterheim. http://www.rugarchives.org --- Rollei List - Post to rollei_list@xxxxxxxxxxxxx - Subscribe at rollei_list-request@xxxxxxxxxxxxx with 'subscribe' in the subject field OR by logging into www.freelists.org - Unsubscribe at rollei_list-request@xxxxxxxxxxxxx with 'unsubscribe' in the subject field OR by logging into www.freelists.org - Online, searchable archives are available at //www.freelists.org/archives/rollei_list