Important Notice: We're experiencing email notification issues. If you've posted a question in the community forums recently, please check your profile manually for responses while we're working to fix this.

On Monday the 3rd of March, around 5pm UTC (9am PT) users may experience a brief period of downtime while one of our underlying services is under maintenance.

Avatar for Username

Mozilla 도움말 검색

고객 지원 사기를 피하세요. 저희는 여러분께 절대로 전화를 걸거나 문자를 보내거나 개인 정보를 공유하도록 요청하지 않습니다. "악용 사례 신고"옵션을 사용하여 의심스러운 활동을 신고해 주세요.

자세히 살펴보기

이 쓰레드는 보존되었습니다. 만약 도움이 필요하시면 새로운 질문을 올려주세요.

Firefox has way too slow DNS resolution

w.richert
w.richert
more options

The initial handshake takes typically a couple seconds in Firefox, while it takes in Chrome or Safari typically < 1s to display the first content.

Here an example of opening firefox.org: https://share.firefox.dev/3jpZRG4

I've tried all the recommended procedures without any success (personal mode, disabling extensions, starting with clean profile, ...)

Even this form I had to send twice because there was a timeout when sending the data up.

My internet connection is always > 30Mbps, so that should not be a problem.

The initial handshake takes typically a couple seconds in Firefox, while it takes in Chrome or Safari typically < 1s to display the first content. Here an example of opening firefox.org: https://share.firefox.dev/3jpZRG4 I've tried all the recommended procedures without any success (personal mode, disabling extensions, starting with clean profile, ...) Even this form I had to send twice because there was a timeout when sending the data up. My internet connection is always > 30Mbps, so that should not be a problem.

모든 댓글 (2)

cor-el
cor-el
  • Top 25 Contributor
  • Moderator
more options

You can check the Network Monitor to see if content is blocked or otherwise fails to load.

If necessary use "Ctrl+F5" or "Ctrl+Shift+R" (Mac: Command+Shift+R) to reload the page and bypass the cache to generate a fresh log.

You can try to disable IPv6 (check for other possible causes as well).

Thomas M. Beaudry
Thomas M. Beaudry
more options

The other browsers have a faster fallback to IPv4 so it is possible that his IPv6 DNS is not configured correctly. That is what I would check first. Simply turning off IPv6 without checking out the problem is like cooking all your food in a microwave because you have problems operating the stove...