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I wrote a java applet that accesses the file system using AccessController.doPrivileged. it workes on all windows, and browsers, except FF on win 7.

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running as administrator solves the problem, however, it is not needed for IE or Chrome, only for FF. tested on win 7 with: FF: 16, 17 18 java: 1.6, 1.7 32 bit.

the code tries to write a file to the default sandbox location, and of course that it is signed. (otherwise it wouldn't have worked in other browsers):

AccessController.doPrivileged(new PrivilegedAction<String>() {
            public String run()
            {
                   String filename = UUID.randomUUID().toString();
                    File newTextFile = new File(filename);
                    String filepath = newTextFile.getAbsolutePath();
                    System.out.println(filepath);
                    fileWriter = new FileWriter(newTextFile);
                    fileWriter.write(content);
                    fileWriter.close();
                    return "a";
            
         }
       );
running as administrator solves the problem, however, it is not needed for IE or Chrome, only for FF. tested on win 7 with: FF: 16, 17 18 java: 1.6, 1.7 32 bit. the code tries to write a file to the default sandbox location, and of course that it is signed. (otherwise it wouldn't have worked in other browsers): <pre><nowiki> AccessController.doPrivileged(new PrivilegedAction<String>() { public String run() { String filename = UUID.randomUUID().toString(); File newTextFile = new File(filename); String filepath = newTextFile.getAbsolutePath(); System.out.println(filepath); fileWriter = new FileWriter(newTextFile); fileWriter.write(content); fileWriter.close(); return "a"; } );</nowiki></pre>

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