Until now, Dashlane worked fine with Firefox , which is 66.0.3 (64-bit). But when I try to reinstall Dashlane, which is version 6.1914.0, Firefox won't let it install. The first message I get is: Firefox prevented the site from asking you to install software on your computer. And when I click on allow, I get this message: The add-on downloaded from this site could not be installed because it appears to be corrupt. Can you help? Best regards.