Select Install Add-on from file... from the menu, then find and select the file. Some extensions place a button in the toolbar after installation. You can ...
Easily download add-ons by opening Firefox, going to the three-line menu, and clicking Add-ons. · From that list, click Install next to the add-ons you want ...
2011年2月20日 — Open the Add-ons window (Tools > Add-ons > Extensions), click the Install button at the bottom left, navigate to the location of the ...
2021年10月2日 — xpi or .jar file) you can install the add-on using the gear icon in the upper-right area of the Add-on Manager Extensions panel. Select ...
xpi file; from the Firefox File menu, select Open File..., and open the saved Extension's .xpi file. A Software Installation dialog will appear. Select ...
2020年6月6日 — ... files) and rename it to .xpi, and then choose Install Add-on from file and select my .xpi, it says: The add-on downloaded from this site ...
2020年6月4日 — Select Install Add-on from file... from the menu, then find and select the file. either way I run into trouble: image of firefox blocking add-on ...
