You can enter an pop-up exception for a site. See https://support.mozilla.com/en-US/kb/Pop-up%20blocker#w_pop-up-blocker-settings Be sure to check your setting for Clear Recent History and Clear History When Firefox Closes so that you do not clear your exceptions. You do not want to clear "Site Preferences". Clearing "Site Preferences" clears all exceptions for cookies, images, pop-up windows, software installation, and passwords. *https://support.mozilla.com/en-US/kb/Clear%20Recent%20History '''If this reply solves your problem, please click "Solved It" next to this reply when <u>signed-in</u> to the forum.''' ---------------------------- Not related to your question, but... You need to update some plug-ins: *Plug-in check: https://www-trunk.stage.mozilla.com/en-US/plugincheck/ *Adobe Shockwave for Director Netscape plug-in: [https://support.mozilla.com/en-US/kb/Using%20the%20Shockwave%20plugin%20with%20Firefox#w_installing-shockwave Installing ('''''or Updating''''') the Shockwave plugin with Firefox] *Shockwave Flash (Adobe Flash or Flash): [https://support.mozilla.com/en-US/kb/Managing%20the%20Flash%20plugin#w_updating-flash Updating Flash in Firefox] *Next Generation Java Plug-in for Mozilla browsers: [https://support.mozilla.com/en-US/kb/Using%20the%20Java%20plugin%20with%20Firefox#w_installing-or-updating-java Installing or Updating Java in Firefox]