F7031-1102 on Firefox, it typically points to Adblock Plus or another ad blocking software preventing the browser from reaching our service. Follow the troubleshooting steps below to resolve the issue. Disable Adblock Plus on the Netflix site Open Netflix.com and click on the Adblock Plus (ABP) button in the upper right corner of your screen. Select Disable on netflix.com. This will make the ABP button gray on Netflix.com sites. Try playing your movie or TV show again. Disable Adblock Plus on Firefox Open Firefox and select Tools or the Menu icon (). Select Add-ons. Select Extensions. Find Adblock Plus and select Disable. Try playing your movie or TV show again.