FAQCommon problems and quick fixes.Copy MarkdownOpenBrowser Extension "Protocol version mismatch""Invalid pairing token"Extension shows disconnected, but the app is runningClicked Auto Pair but nothing happened on the desktopFirefox downloads the file twiceAndroid can't take over browser downloads Downloads File downloaded but won't open / checksum failsDownload stuck near the end, speed drops to zeroDownload fails with a server errorSSL handshake failure / certificate error Install and Startup Windows: Smart App Control blocks installation or launchmacOS: "Ghost Downloader is damaged"Linux (Arch/KDE): buttons like "Install Extension" do nothingIn-app update fails / shows an error dialog Runtimes One-click install for M3U8 / YouTube / FFmpeg / eD2k fails