If you have ZoneAlarm, try updating to the latest version or disable the anti-keylogger feature.

@dropa, the chat window shows up on my iMac in Firefox on the Facebook window. I tried restarting and the problem remained.

Today the problem has disappeared so I can't mark it as solved :-(

AWOL gremlin?

Thanks for offering to help.

pete

@zeroknight, thanka but no, I don;t have zonealarm

pete

How does this show in the Inspector ?

You can right-click and select "Inspect" to open the built-in Inspector with this element selected.

• https://firefox-source-docs.mozilla.org/devtools-user/page_inspector/how_to/open_the_inspector/
• https://firefox-source-docs.mozilla.org/devtools-user/page_inspector/how_to/examine_and_edit_html/

You can check in the Rules tab in the right panel in the Inspector what font-family is used for selected text. You can check in the Fonts tab in the right panel in the Inspector what font is actually used because Firefox might be using a different font than specified by the website. If the Fonts tab is hidden, click the down arrow at the right end.

• https://firefox-source-docs.mozilla.org/devtools-user/page_inspector/how_to/edit_fonts/