1 files changed, 7 insertions, 0 deletions

diff --git a/src/firejail/x11.c b/src/firejail/x11.c
index 8c781c67a..a7bd9fd29 100644
--- a/src/firejail/x11.c
+++ b/src/firejail/x11.c
@@ -127,6 +127,13 @@ void x11_start(int argc, char **argv) {
         pid_t client = 0;
         pid_t server = 0;
         
+
+        // unfortunately, xpra does a number of wired things when started by root user!!!
+        if (getuid() == 0) {
+                fprintf(stderr, "Error: this feature is not available when running as root\n");
+                exit(1);
+        }
+
         // check xpra
         if (x11_check_xpra() == 0) {
                 fprintf(stderr, "\nError: Xpra program was not found in /usr/bin directory, please install it:\n");