Can't deploy extension (firefox)

Question

I am closely following the tutorial here as I attempt to create a Firefox extension. I have the following tree for my extension:

backtosearch
  +-chrome
    +-content
      backtosearch.xul
  +-chrome.manifest
  +-install.rdf

I have created a testing profile for FF called "Extension Testing" and have added a file to the profile extensions folder "[email protected]" containing absolute path to the extension folder. I have reloaded the browser chrome using the extension development extension and restarted the browser - but I see no new button.

I have simplified the tutorial (as I only require one button), and my .xul contains only that. My chrome.manifest file contains:

content backtosearch chrome/content/
overlay chrome://browser/content/browser.xul chrome://backtosearch/content/backtosearch.xul

The extension is not showing under view -> toolbars or tools -> addons

Thanks for any help

install.rdf

<?xml version="1.0"?>

<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
     xmlns:em="http://www.mozilla.org/2004/em-rdf#"&gt;

    <Description about="urn:mozilla:install-manifest">

        <!-- Required Items -->
        <em:id>[email protected]</em:id>
        <em:name>Back To Search</em:name>
        <em:version>1.0</em:version>

        <em:targetApplication>
            <Description>
                <em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id>
                <em:minVersion>1.5</em:minVersion>
                <em:maxVersion>3.5.*</em:maxVersion>
            </Description>
        </em:targetApplication>

        <!-- Optional Items -->
        <em:creator>Dylan Lloyd</em:creator>
        <em:description>Adds options to return to your last search immediately.</em:description>
        <em:homepageURL>http://www.getyourkeywords.com/&lt;/em:homepageURL&gt;

    </Description>
</RDF>

[email protected]

C:\Users\Dylan\Desktop\backtosearch\

Answer 1

From your description it's not clear what the problem is. The most likely cause, as sdwilsh noted is that the Extension didn't get registered. If this is the case, the extension will not appear in Tools -> Addons.

You can try to set extensions.logging.enable pref to true to help debugging. Maybe try installing a helloworld extension first?

Possible causes:

• You didn't use the correct name for the "link" file (must match the extension ID).
• The "link" file contents is invalid (the path format is OS-native). In your case the path should end with "backtosearch"
• Incorrect install.rdf. You can check it at least to be valid XML by opening it in Firefox (possibly renaming to .xml first) -- if the yellow screen opens, its invalid.
• Installed in the wrong profile or didn't really restart Firefox.

If the extension is registered, try opening chrome://backtosearch/content/backtosearch.xul in Firefox (by copying that to the Location bar) -- if any errors appear, you should fix them. If the file loads successfully (may be empty), there's a problem with your overlay's contents, which is hard to debug without seeing it. Perhaps start with an overlay that's known to work?