xpi file icon from the desktop (or other location) and drop it onto an open Firefox "Add-ons" window ("Extensions" or "Themes" window in Firefox 1.5 and earlier). After the download is complete, drag the downloaded. The downloaded file will have a ".jar" or ".xpi" extension. Some web sites offer the option to download a theme or extension instead of installing it. See this article and bug 378216 for more information.ĭownloaded theme or extension will not install Add-ons from AMO and other secured sites are not a problem for add-ons that do provide a secure updating method, advanced users can add the preference extensions.checkUpdateSecurity and set it to false (not recommended). If you have add-ons already installed that are insecure in this way, they will be automatically disabled.
Click the Edit Options button on the yellow bar, as shown above."Firefox prevented this site (from asking you to install software on your computer." When a site that's not allowed to prompt you to install software attempts to do so, you'll receive a yellow bar that says: Just click the Enable button on the right side of the message bar. To re-enable:įirefox 2: The yellow message bar says, "Software installation is currently disabled. Some users may have disabled the software installation option based on security issues which have since been resolved. Websites are only allowed to prompt you to install an extension or theme if you have the functionality enabled and if you have allowed that specific site to do it. NET Framework Assistant, add an extra user agent string. Note that some extensions, including MegaUpload Toolbar and Microsoft. If any of the eragent preferences are shown as user set (they will be in bold type), open the context (right-click) menu and select "Reset" to restore the default setting. Otherwise, open about:config and enter eragent in the filter box. If you are using an add-on such as User Agent Switcher, restore the default user agent (or restart Firefox).
Your browser user agent may be incorrect, causing the add-ons site to report that the extension is for an older version of Firefox or that you must upgrade Firefox to use the add-on.
Extensions that have been installed by turning off compatibility testing with extensions.checkCompatibility set to false are clearly marked in the Add-On listing with a white exclamation point on a red background overlaying the lower left corner of the icon associated with the add-on.
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