lxqt desktop linux

For firefox do this. Copy
cp /usr/share/applications/firefox.desktop /usr/share/applications/firefox-profile.desktop 
chmod 644 firefox-profile.desktop
replace with
[Desktop Entry]
Version=1.0
Name=Firefox Profile
Comment=Browse the World Wide Web
GenericName=Web Browser
Keywords=Internet;WWW;Browser;Web;Explorer
Exec=firefox --no-remote
Terminal=false
X-MultipleArgs=false
Type=Application
Icon=firefox
Categories=GNOME;GTK;Network;WebBrowser;
MimeType=text/html;text/xml;application/xhtml+xml;application/xml;application/rss+xml;application/rdf+xml;image/gif;image/jpeg;image/png;x-scheme-handler/http;x-scheme-handler/https;x-scheme-handler/ftp;x-scheme-handler/chrome;video/webm;application/x-xpinstall;
StartupNotify=true
Reload lxqt after this
openbox --reconfigure
Lxqt desktop linux with resize and F1-F10 short cut keys