

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. Contact the author of the add-on at the support site listed on its add-on page.For more information, see Firefox Add-ons. For many extensions, there are similar extensions that provide the same functionality. The Firefox Add-ons website usually has the most up to date version of each add-on. Find a version of the add-on that is compatible with your version of Firefox.For more information, see Update Firefox to the latest release.

Update to the latest version of Firefox.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.
