This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Lolu chungechunge lwabekwa kunqolobane. Uyacelwa ubuze umbuzo omusha uma udinga usizo.

Firefox crashes

  • 4 uphendule
  • 1 inale nkinga
  • 5 views
  • Igcine ukuphendulwa ngu AlexMPH

AlexMPH
AlexMPH
more options

Firefox started crashing yesterday or today, at first when browsing to specific sites (plex.tv desktop app, bringatrailer.com), later on more frequently, even in safe mode

Firefox started crashing yesterday or today, at first when browsing to specific sites (plex.tv desktop app, bringatrailer.com), later on more frequently, even in safe mode

Isisombululo esikhethiwe

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
Funda le mpendulo ngokuhambisana nalesi sihloko 👍 1

All Replies (4)

AlexMPH
AlexMPH Umnikazi wombuzo
more options

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...)

Okulungisiwe ngu cor-el

AlexMPH
AlexMPH Umnikazi wombuzo
more options

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

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

Isisombululo Esikhethiwe

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
AlexMPH
AlexMPH Umnikazi wombuzo
more options

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!!

Okulungisiwe ngu AlexMPH