How to fix: " ERROR: Could not download an installer extension"?

This probably happens because the installer tries to contact a server that is blocked by the firewall of your office, try opening the package at home, and see if that solves the problem

Try an older version, that's what I did and I works 🙂

It did work for me... 🙂

1. Disable your Firewall by going to System Preferences>Security & Privacy. Click the Firewall tab then click the lock icon at the bottom of the window this will enable you to turn the Firewall on or off.

2. Be sure you're not connected to a VPN or Proxy. < (I was able to install the latest uTorrent when I disconnected from my VPN).

Hope I helped.

You can get malware from uTorrent sites. Avoid them.

I recently bought a mac and had the same problem, luckily I found a workaround. Its probably because some servers that the installer contacts are blocked by our respective ISP or country. I live in Pakistan so this holds true for my country. maybe the Spigot servers. anyway coming to the point, using a VPN will fix your problem. Hotspot shield worked for Youtube Downloader, but not for utorrent and bittorent. for these two I used tunnelblick, using server configurations from www.vpnbook.com, that also if I used US servers, EU servers returned the same error. I regularly need VPN to access youtube so this workaround isn't much of a hassle for me. hope it fixes your problem too.

You can get unhelpful opinions from support forums. Avoid them.

Thanks @darkbayinc, I had the exact same problem on my MBP(I'm from Lahore, PAK). So it might be an ISP/Internet issue. Anyhow, your solution worked!

I`m facing the same issue with my MacBook Air, I just want to get resolved it. Is there anyway, cause I`m unable to install the uTorrent!

Thanks for the really helpful post. Im also from pakistan, struggling to get torrent to work.
Im not sure which openvpn configuration to download cause the US ones does not support p2p
Does it matter? Thanks

Just install Cyberghost, it's available for Mac as well as Win.

The uTorrent installer gives weird errors like "could not download an installer extension" or "could not initialize the installer". The installer has to download some stuff from the web, and it looks like some ISPs block those.

When Cyberghost ran(and had fully connected - this takes a few mins), I didn't get any of those errors.