Unhelpful Documents Article Total Votes Helpfulness The thumbnails on the new tab page are missing - how to get them back 138 13.8% Firefox does not work - Common fixes to get you back up and running 11 9.1% Customize controls and options on Firefox OS 12 16.7% Changes to toolbars and window sizes are not saved 22 22.7% Firefox is stuck in Safe Mode 53 26.4% Websites look wrong or appear differently than they should 56 26.8% What to do if Firefox won't play any sounds 27 25.9% Unable to install add-ons or extensions 13 23.1% Use bookmarklets to quickly perform common web page tasks 6 16.7% Recover lost or missing Bookmarks 75 28.0% Firefox is slow - How to make it faster 30 26.7% Customize sound and vibration settings on Firefox OS 2 0.0% Forum Response - Reset location bar search provider 2 0.0% Forum Response - Disable hardware acceleration 2 0.0% How To Connect To Wi-Fi On Firefox OS 5 20.0% How To Use The Call Log 1 0.0% How to use Templates 1 0.0% Forum Response - Plugin check 1 0.0% Firefox OS User Guide 1 0.0% Silence incoming smartphone calls 1 0.0% What happened to the File, Edit, and View menus? 88 29.5% Firefox can't load websites but other browsers can 59 30.5% How do I manage my Persona account? 3 33.3% Forum Response - Starting Firefox in Safe Mode 3 33.3% Firefox Sync troubleshooting and tips 31 32.3% Firefox and other browsers can't load websites 15 33.3% Forum Response - Clean reinstall 8 37.5% Enable SSL to fix the Firefox cannot connect securely error message 14 35.7% Personalize Firefox - an overview of customization options 57 33.3% Memory constraints, Firefox performance and Firewalls 10 40.0% Websites don't load - troubleshoot and fix error messages 77 33.8% Block and unblock websites with parental controls 49 34.7% Uninstall Firefox from your computer 94 34.0% Cannot uninstall an add-on 12 41.7% Use the Troubleshooting Information page to help fix Firefox issues 21 38.1% How to fix preferences that won't save 27 37.0% How do I restore my tabs from last time? 33 36.4% Change what Firefox does when you click on or download a file 72 34.7% Server Not Found - Troubleshoot connection problems 38 36.8% Fix common audio and video issues 43 37.2% What happened to the Status Bar? 37 37.8% Can't add, change or save bookmarks - How to fix 27 40.7% Warning Unresponsive plugin - What it means and how to fix it 72 37.5% Fix problems that cause images to not show 17 47.1% Fix problems with RealPlayer add-ons 28 42.9% Stop Firefox from opening multiple tabs when it starts 42 40.5% Install an older version of Firefox 81 38.3% The Add-on Bar gives you quick access to add-on features 36 41.7% Fix printing problems in Firefox 30 43.3% How to print websites 41 41.5% Use tabs to organize lots of websites in a single window 24 45.8% Firefox uses too much memory (RAM) - How to fix 46 41.3% Flash video won't play full screen on YouTube, Facebook and other websites 26 46.2% Configure firewalls so that Firefox can access the Internet 64 40.6% "This Connection is Untrusted" error message appears - What to do 118 39.0% Sort your bookmarks to quickly find the ones you want 63 41.3% Fix problems connecting to websites after updating Firefox 76 40.8% Import Bookmarks from an HTML file 47 44.7% Usernames and passwords are not saved 39 46.2% Reset Firefox preferences to troubleshoot and fix problems 57 43.9% Troubleshoot and diagnose Firefox problems 85 45.9% Customize Firefox controls, buttons and toolbars 335 45.7%