Help I need help. i get this message'Firefox could not install this item because "install.rdf" (provided by the item) is not well-formed or does not exist. Please contact the author about this problem.' How do i fix this?
Firefox could not install this item because "install.rdf" (provided by the item) is not well-formed or does not exist. Please contact the author about this problem.
Well that is the message i get. I can still use firefox(version3.6.8)
Firefox could not install this item because "install.rdf" (provided by the item) is not well-formed or does not exist. Please contact the author about this problem.
Well that is the message i get. I can still use firefox(version3.6.8)
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That is a problem with installing an add-on. You can try removing some files related to add-ons.
- Open your profile folder in Windows Explorer, for details of how to find it see profiles.
- Close Firefox
- In the profile folder delete extensions.rdf, extensions.cache and extensions.ini
- Open the extensions folder that is inside the profile folder
- If there is a folder called staged-xpis delete it.
- Restart Firefox to see if the error has gone
You get that error if an extension is using an old and no longer supported method to install a plugin.
Which plugin are you trying to install?
See also http://kb.mozillazine.org/Unable_to_install_themes_or_extensions