Can anyone tell me why the installing old addons method by changing the
install.rdf max version is not working with Tab Mix Plus? I changed the maxVersion to both
17.* and
17.0. I get the error message:
Tab mix plus could not be installed because it is not compatible with firefox 17.0.
https://www.techsupportalert.com/con...rbird-addons-n
How to install “old” add-ons on Firefox 5. The easy way! | Computer Borders