|User since||June 24, 2011|
|Number of add-ons developed||0 add-ons|
|Average rating of developer's add-ons||Not yet rated|
Rated 1 out of 5 stars
Rated 3 out of 5 stars
The default user agent strings provided are worthless. IE, iPhone and search spiders? Come on, really?
If you want an nice set of browser strings get the xml from here: http://pastebin.com/raw.php?i=CpmdwcVc
Plugin works other wise
ff5 Rated 5 out of 5 stars
Download to your computer a copy of the extension (the ".xpi" file). <a href="https://addons.mozilla.org/firefox/downloads/latest/539/addon-539-latest.xpi">Right Click > Save As</a>
Extract (unzip) the .xpi file. It is simply a zipped file with an .xpi extension, so you should be able to use something like unzip or Stuffit-expander (on Mac) to extract it. You can also open the file with WinRar
Open the "install.rdf" file with a text editor such as Notepad. Find a tagline like this showing the "maxVersion" number (in this case 2.0, but it may differ depending on the extension): <em:maxVersion>2.0</em:maxVersion>
Change the "4.0" to "5.0.*" or whatever you need (the * covers any minor updates to release versions). That tells the installer that the version can be installed with the corresponding version number of Firefox or Thunderbird.
Optionally, to indicate that you modified the extension for your own private use, you can also edit the lines describing the author/contributor and version of the extension.
Save the changes you made to the install.rdf file.
If you opened the xpi file with WinRar you can modify the file and save it and WinRar will save the changes to the xpi file or Create a zip archive containing all the files that were in the original .xpi file, including your modified install.rdf file. Rename it to "myExt.xpi" or whatever you like. The crucial thing here is to use ".xpi" for the file extension.
Strongly recommended: before installing the extension, make a temporary backup of your profile folder or at least of the "extensions" folder inside your profile folder, which contains the installed extensions. That way, if something goes wrong, you can revert the changes easily.
Finally, install the extension: If it's a Firefox extension, open the .xpi file from Firefox and it should install. If it's a Thunderbird extension, install it via the "Tools -> Add-ons" menu. You can also drag and drop the xpi file to firefox.