Dear Maintainer,
I was trying to check if torbrowser has been updated and I am not able
to check :-

$ torbrowser-launcher
Tor Browser Launcher
By Micah Lee, licensed under GPLv3
version 0.1.4
https://github.com/micahflee/torbrowser-launcher
Initializing Tor Browser Launcher
Successfully loaded mirrors from /usr/share/torbrowser-launcher/mirrors.txt
Warning: can't load mirrors from /home/shirish/.config/torbrowser/mirrors.txt
Importing keys
gpg: key 63FEE659: "Erinn Clark <erinn@torproject.org>" not changed
gpg: Total number processed: 1
gpg:              unchanged: 1
Starting launcher dialog
LATEST VERSION 3.6.5
Checking for update
Running task: download_update_check
Downloading https://www.torproject.org/projects/torbrowser/RecommendedTBBVersions
Updating over Tor
Download error: Connection was refused by other side: 111: Connection
refused. <class 'twisted.internet.error.ConnectionRefusedError'>

I tried the lazyweb and was able to find this report
https://github.com/micahflee/torbrowser-launcher/issues/118 as well as
https://twistedmatrix.com/trac/ticket/2454

There doesn't seem to be a work-around for this.

Looking forward to know more.