set a default directory in some cases

Former-commit-id: d989337a9c
Former-commit-id: 3334c0c6e0d54e4001ef0afd5d87ec07d68fd41f

src/java/net/i2p/i2pfirefox/I2PBrowser.java

@@ -112,6 +112,7 @@ public class I2PBrowser extends I2PCommonBrowser {
    * @since 0.0.17
    */
   public void launch(boolean privateWindow, String[] url) {
+    validateUserDir();
     if (generic)
       this.launchGeneric(privateWindow, url);
     if ((chromium && firefox) || (!chromium && !firefox)) {
@@ -175,6 +176,7 @@ public class I2PBrowser extends I2PCommonBrowser {
   }
 
   public static void main(String[] args) {
+    validateUserDir();
     boolean privateBrowsing = false;
     println("I2PBrowser");
     I2PBrowser i2pBrowser = new I2PBrowser();