Trying install any version of Adblock Plus on Seamonkey 2.49.3. It doesn't appear in the Seamonkey add-on page, though 3 additions to Adblock do appear. If I try to install from en/, it gives a warning, then after telling it to install anyway, it says "Tje add-on downloaded from adblockplus.org could not be installed because it appears to be corrupt" All other places I've found the add-on say "Install with Firefox" and force me to a Firefox download page.
I prefer Seamonkey as my primary browser and have had Addblock Plus installed on previous installs. Any thoughts?