Don't search the whole home directory for usable Firefoxes

CHANGES.md

@@ -1,3 +1,10 @@
+Mon, July 8
+-----------
+
+ - Fix a bug which caused the profile manager to fail to detect Firefox on some systems
+ - Fix a bug which caused the profile manager to use an unwritable directory on some systems
+ - Fix a bug where if user tried to run it from the home directory, the application would make sure that no firefoxes existed in any subdirectory before running
+
 Thu, March 7
 ------------
 

src/java/net/i2p/i2pfirefox/I2PCommonBrowser.java

@@ -608,11 +608,16 @@ public class I2PCommonBrowser {
   }
 
   public File userHomeDir() {
-    File hd = new File(System.getProperty("user.dir"));
-    if (hd == null || !hd.exists()) {
-      hd = new File(System.getProperty("user.home"));
+    File rd = new File(System.getProperty("user.dir"));
+    File hd = new File(System.getProperty("user.home"));
+    if (rd == null || !rd.exists()) {
+      if (hd == null || !hd.exists()) {
+        if (rd.getAbsolutePath().equals(hd.getAbsolutePath()))
+          return null;
+      }
+      return rd;
     }
-    logger.info("Runtime directory discovered at: " + hd);
-    return hd;
+    logger.info("Runtime directory discovered at: " + rd);
+    return rd;
   }
 }