* [My communication with developers in a public mozzila bug tracker](https://bugzilla.mozilla.org/show_bug.cgi?id=720050)
* [Showcase fixed](https://support.dce.felk.cvut.cz/osp/student/dothang/preview_changes.jpg)
-* [file changes screenshot(hg diff)](https://support.dce.felk.cvut.cz/osp/student/dothang/changes.png)
+* [Patch uploaded to public repository](https://bug720050.bugzilla.mozilla.org/attachment.cgi?id=8608584)
Presentation
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