Here is some additional info:

bp-127b52d3-55bd-4d1f-92d8-6daca0180521
bp-1805a8f0-5c13-420e-acf1-c8ad90180521
bp-91ede479-f9e9-471e-98e0-fe90e0180521
bp-83daa021-1e1b-4e84-aae4-90e870180521
bp-b8377116-e4e1-44fb-a8bf-7534e0180521
bp-9e5207bd-35e1-4f28-b37a-9a5dd1180520

(I got these after I had figured out that firefox crashes in safe mode when the Mozilla Crash Reporter is still running...)

FYI, I just remembered that I have enabled DNS over HTTPS recently - could this be linked? It seemed to work fine at first...

Yes. Having TRR enabled (DNS-over-HTTPS) could be causing this issue https://www.ghacks.net/2018/04/02/configure-dns-over-https-in-firefox/

What is the value of this pref on the about:config page? Try to disable (0) this feature or try a lower value if it is currently 3

• network.trr.mode = 0

cor-el said

Yes. Having TRR enabled (DNS-over-HTTPS) could be causing this issue https://www.ghacks.net/2018/04/02/configure-dns-over-https-in-firefox/ What is the value of this pref on the about:config page? Try to disable (0) this feature or try a lower value if it is currently 3

• network.trr.mode = 0

Hi cor-el,

This works! Value was at 2. Does this mean that DoH is still in alpha/beta phase for now? I used the link you provided when setting up DoH a couple of days ago.

Thanks a lot!!