Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

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

Firefox displays pages without styles briefly before applying styles

  • 2 replies
  • 8 have this problem
  • 19 views
  • Last reply by Jarppe

more options

When I navigate to a page, Firefox briefly shows the page without styles. This causes annoying flickering.

I made a video of this and uploaded here: https://www.youtube.com/watch?v=UQDNF40iysg

This does not happen in every page, perhaps because the css is alrady in cache, or css is loaded so fast. My network speed should be ok (speedtest.net reports 237 Mbps / 47 Mbps).

When I navigate to a page, Firefox briefly shows the page without styles. This causes annoying flickering. I made a video of this and uploaded here: https://www.youtube.com/watch?v=UQDNF40iysg This does not happen in every page, perhaps because the css is alrady in cache, or css is loaded so fast. My network speed should be ok (speedtest.net reports 237 Mbps / 47 Mbps).

Chosen solution

hello, can you try to replicate this behaviour when you launch firefox in safe mode once? if not, maybe an addon is interfering here...

Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems

Read this answer in context 👍 1

All Replies (2)

more options

Chosen Solution

hello, can you try to replicate this behaviour when you launch firefox in safe mode once? if not, maybe an addon is interfering here...

Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems

more options

Thanks philipp, it was indeed an addon that caused this. I removed AdBlocker Ultimate and the flickering stopped.