Fix slowness, crashing, error messages and other problems

• Add-on signing in Firefox for Android You'll see a warning in Firefox for Android when you try to install unverified or unsigned add-ons. Learn more about add-on signing.
• Firefox for Android displays blank web pages If you see blank web pages or a white screen when you open Firefox on your Android device, try these steps to fix the problem.
• Some videos won't play in background Some popular video websites have changed their settings on the server side so that videos will no longer play in the background.
• Avoid and report Mozilla tech support scams Mozilla does not charge for software, upgrades or technical support. Find out about common scams and how to protect yourself from them.
• Firefox Health Report - understand your Android browser performance Firefox Health Report lets you know how well your browser is performing on Android and what steps you can take to improve it.
• I can't play videos or audio on Firefox for Android 5.0 (Lollipop) If you're using Firefox on your Nexus 6 or Nexus 9, you might experience temporary issues with video and audio files. Learn how to fix them.
• Firefox Marketplace Apps Stop Working on Firefox 47+ for Android The Firefox feature that enables you to run Firefox Marketplace apps will be removed from Firefox in version 47. There are a few ways to work around the change.