When I open a link a new window opens with the toolbar and sidebar missing, on my previous machine the link simply opened in a new tab (not window).

When I open a link in Firefox instead of opening a new tab it opens in a new window with all of the toolbars missing including the sidebar, right clicking anywhere gives me no options to restore the toolbars. My old machine simply opened the same link that I am trying in a new tab with all my toolbars available.

Start Firefox in <u>[[Safe Mode|Safe Mode]]</u> to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance).
*Do NOT click the Reset button on the Safe Mode start window or otherwise make changes.
*https://support.mozilla.org/kb/Safe+Mode
*https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes

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