Disable Add-on Compatibility Checks

Z 5 z 5 gwězdkow pógódnośony

wót ClapOn dnja Maj 5, 2016 · trajny wótkaz

While this extension may do what it does just fine, Mozilla has changed their code to require plug-ins to be "signed" before they can work. They will be marked as something that means the original writer never got the xpi registered and approved by mozilla. Recommendation is to switch to Palemoon or another fork of Firefox.