Make Any Add-on Compatible To Any Firefox

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Whenever you gets the updates of Firefox (for only browser),most of the time there is chance of occurrence of incompatibility of any of your favourite add-on.
So here is simple and effective hack for this problem…

First and only once you have to understand how the compatibility is written in the code of add-on….And it is very simple to understand.
Check Following:

1. First get the add-on file like add-on-name.xpi
2. Rename to add-on-name.zip
3. Open it with zip
4. Look for install.rdf
5. Open it with WordPad.
(In case if it is not open in WordPad, extract it and then open it with WordPad)
6. Now you will notice that:(Sometimes this differ but the following red lines must occur)

<?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#">
<Description about="urn:mozilla:install-manifest">
<em:id>sample@sample.com</em:id>
<em:version>1.0</em:version>
<em:type>2</em:type>
<!-- Target Application this extension can install into,
with minimum and maximum supported versions. -->
<em:targetApplication>
<Description>
<em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id>
<em:minVersion>1.5</em:minVersion>
<em:maxVersion>1.5</em:maxVersion>
</Description>
</em:targetApplication>
<!-- Front End MetaData -->
<em:name>Addon Name</em:name>
<em:description>A sample extension.</em:description>
<em:creator>Addon Author Name</em:creator>
<em:homepageURL>http://www.AddonHomePage.com/</em:homepageURL>
</Description>
</RDF>

7. Now concentrate only two lines written in red colour;
here is the hack,
<em:minVersion>1.5</em:minVersion>
<em:maxVersion>2.5</em:maxVersion>
These two lines defines that,
Minimum compatibility version is 1.5
And
Maximum compatibility version is 2.5.

8. Now in order to make it compatible, we have to just change these two parameters.
e.g. If I want to make add-on like above to compatible with version 3.0.0 to 3.5.3 then replace above lines with following
<em:minVersion>3.0.0</em:minVersion>
<em:maxVersion>3.5.3</em:maxVersion>

9. Now save the install.rdf.

10. Again rename it to add-on-name.xpi

Now, your incompatible add-on is get compatible with your choice of Firefox version.

NOTE: The percentage of success of this hack is 99.99%. This is because some add-on gets compatible with updates of Firefox versions but not working fully.

FINAL WORDS:
You may put your comments over here, so others get trust on this. And if you not getting this hack, you may tell here, I will make it compatible for you and send to you...But I want that you people try this yourself, its so simple, else I am here for you...