

For more information, see Add-ons that cause stability or security issues are put on a blocklist.įirefox prevented the site from asking you to install softwareīy default, Firefox permits you to install add-ons only from trusted websites. For more information, see Add-on signing in Firefox.Īdd-on has a high risk of causing stability or security problems and can't be installedĬertain add-ons have been blocklisted by Mozilla for being unsafe. (Note: posting a review is not effective and will not reach the author.)įirefox has prevented this site from installing an unverified add-onįirefox protects you against malware and browser hijackers by blocking third-party add-ons that are not digitally signed and verified by Mozilla.

If your version of Firefox is incompatible with the add-on, you can: If your installed version of Firefox does not fit within that range, installing the add-on results in an error, indicating that the add-on is not compatible. In the Firefox Add-ons area of Mozilla, you can review version compatibility information on the page for each available extension. 6 Nothing happens when you click the install linkĪn internal file in each add-on indicates the range of Firefox versions with which the extension is compatible.5 You are asked to download the add-on, rather than installing it.

4 Firefox prevented the site from asking you to install software.3 Add-on has a high risk of causing stability or security problems and can't be installed.2 Firefox has prevented this site from installing an unverified add-on.
