Hi there. Page elements not working correctly could be due to server issues, bad cache, add-on interference or external interference. It could also be a problem with Firefox. To try and solve these in order, please try the following: # Make sure your Firefox is up to date by visiting https://www.mozilla.org/en-GB/firefox/new/ (you are on 45.0 according to your technical details, the newest version for your OS is 45.0.1). # Reload the page without using cached data; press Ctrl + F5. You can check that this shortcut is valid at https://support.mozilla.org/en-US/kb/keyboard-shortcuts-perform-firefox-tasks-quickly. # Go to '''about:addons''', select the Plugins tab and set all plugins to Never Activate. Then start Firefox in Safe Mode, https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode#w_how-to-start-firefox-in-safe-mode, to disable Themes and Extensions and override some settings that may cause issues. # Finally, if none of the above work, we can suspect a corrupt profile or antivirus or malware interference to be the case and go from there.