Hi, To prevent GIF animation so that it appears as a static image, please see [http://kb.mozillazine.org/Animated_images_in_RSS_feeds_%28Thunderbird%29 this]. You can also try to block the .gif file type in the security software installed on the PC, if the option is present. [http://kb.mozillazine.org/About:config about:config] [http://kb.mozillazine.org/About:config_entries about:config Entries]

You can use Adblock Plus to block specific content. * Adblock Plus: https://addons.mozilla.org/firefox/addon/adblock-plus/ You need to subscribe to a Filter list (e.g. the EasyList). * http://adblockplus.org/en/subscriptions * http://adblockplus.org/en/getting_started ----- There are other things that need your attention. You should at least update your Firefox 3.6.14 to the latest Firefox 3.6.28 if you do not want to update to Firefox 11. You can find the latest Firefox release in all languages and for all Operating Systems here: *Firefox 3.6: http://www.mozilla.org/en-US/firefox/all-older.html *Firefox 11.0.x: http://www.mozilla.org/en-US/firefox/all.html Also update your old Shockwave Flash 10.0 r22 version. *https://support.mozilla.org/kb/Managing+the+Flash+plugin *http://kb.mozillazine.org/Flash *http://www.adobe.com/software/flash/about/ You can find the latest Flash player for Firefox on this page. *http://www.adobe.com/special/products/flashplayer/fp_distribution3.html