As I was getting Firefox setup on my newly setup Mint system, I needed to make a couple about:config tweaks to make the process a little easier.

Enable the ‘Install Button’ (Firefox 3.6 and older)

1. In a new tab, type about:config in the address bar and press enter
2. (If needed) click the I’ll Be Careful button
3. In the filter field enter extensions.hideInstallButton
4. In the preference list double-click on extensions.hideInstallButton to change the value to False

Note: Firefox 4 and newer the install button is available, albeit hidden in the ‘Gear’ Menu in the add-ons manager select Install Add-on From File…:

Disable Install ‘Count Down’

Having to install add-ons one-by-one is a time consuming process as it is, but to having to wait 3-seconds before you can click that install button adds up. This is suppose to be a security feature, which I can understand for the first time someone goes to install an add-on. To disable this feature:

1. In a new tab, type about:config in the address bar and press enter
2. (If needed) click the I’ll Be Careful button
3. In the filter field enter security.dialog_enable_delay
4. In the preference list double-click on security.dialog_enable_delay
5. In the dialog box enter 0