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Just got Firefox version 17.Every add on I try to load comes back with cannot download, not compatable with version 17
ASUS TF300 Andriod 4.1 Firefox 17. .
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This can be caused by one of files that contain details of installed extensions becoming corrupted.
Close Firefox, go to your profile folder and delete extensions.cache, extensions.ini and extensions.rdf
Next open the extensions sub-folder within your profile folder, if there is a folder called staged-xpis delete it.
Firefox > Exit and reopen it.