Click the favicon to the left of the URL, click "More Information" and then click the "Media" button. Make sure that "Block images from (name of site)" is not checkmarked. A "favicon" is the logo the site uses by the way. So on this forum, the favicon is the blue "mozilla" you see to the left of the URL. If it looks OK, try running Firefox in [[Safe Mode]]. If it functions properly in that configuration, then one of your add-ons is the culprit. ---- I notice also that some of your plugins are out of date which might influence the way Firefox behaves. Update by visiting the [http://www.mozilla.com/en-US/plugincheck/ Plugins Check] page and update where necessary.