Moving Firefox 13's startpage elements by editing omni.ja crashes FF, anyone know how to do this properly?

Question

After removing the settings elements on Firefox 13's startpage, the google searchbox and logo are too low and I'd like to move them. I can edit the startpage by opening omni.ja with IZArc and going to chrome\browser\content\browser\abouthome\aboutHome.xhtml and editing the file, but when I save the omni.ja file to the FF directory, it fails to launch the programme. Does anyone know how to do this properly? I think I'm missing a step.

Answer 1

Just got this working! Used Unzip to extract the files (just drag omni.ja onto it).

Get unzip from http://stahlforce.com/dev/index.php?tool=zipunzip (Info-zip's own site does not allow you to download it anymore).

What I did:

1. Created a folder on my desktop to hold the extracted files. (TEST)

2. Dragged Unzip.exe and omni.ja into this folder.

3. Dragged omni.ja onto Unzip.exe to extract all the files.

4. Remove/deleted Unzip.exe and omni.ja from this folder.

5. Made my changes to the folder. (in this case I was editing the firefox.js file... not applicable to you)

6. Rezip all the folders using windows zip. (highlight all the files and folders, right-click, send to, Compressed (zipped) folder)

7. Rename this zip file as omni.ja and copy it back to the root of your Firefox directory.

I have to say that I did have to edit my js file in notepad though; using whatever was set as windows default editor would just error.

Source: Locking down Firefox 14 (blog post)