 <p>The SO answer "<a href="http://stackoverflow.com/questions/214272/how-to-set-up-internal-browser-for-aptana-on-linux">How to set up internal browser for Aptana on Linux</a>" lists some solution.<br> Check also your version of Aptana vs. JDK (32 or 64 bits): "<a href="http://www.raditha.com/blog/archives/barking-up-the-wrong-tree..html" rel="nofollow">Barking Up the Wrong Tree</a>" </p> <p>More recently (December 2012, <a href="http://aerdhyl.eu/about-me.html" rel="nofollow">Bruno Carlin</a>), this issue can also be linked to the <strong>version of Xulrunner in Arch LinuX repositories</strong> (see "<a href="http://aerdhyl.eu/blog/2011/12/Aptana-eclipse-and-xulrunner.html" rel="nofollow">Aptana Studio/Eclipse and Xulrunner </a>")</p> <blockquote> <p>The solution is that Aptana Studio cannot work with the version of Xulrunner in Arch LinuX repositories because it is too recent.</p> <p>To solve this problem, I had to install xulrunner 1.9.2 from AUR:</p> </blockquote> <pre><code>yaourt -S xulrunner192 </code></pre> <blockquote> <p>Finally, I put</p> </blockquote> <pre><code>-Dorg.eclipse.swt.browser.XULRunnerPath=/usr/lib/xulrunner-1.9.2 </code></pre> <blockquote> <p>at the end of the AptanaStudio3.ini file in the Aptana Studio folder. For the package in the Arch Linux repositories, this file is <code>/usr/share/aptana/AptanaStudio3.ini</code>.</p> </blockquote>