Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

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.

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.

Rohkem teavet

Firefox hangs with some websites

more options

Firefox hangs scrolling the newest models on Printables (https://www.printables.com/model?o=newest). The problems starts occuring several "pages" down the endless list. While scrolling I open interesting models with shift+click. At first opening models starts taking several seconds and some time later I can't scroll further down. Firefox shows a notification: "This page slows down Firefox".

YouTube videos won't start playing (again after opening with shift+click). Sometimes I can get them to start by clicking several points on the timeline and sliding back to the beginning. At first everything is fine, but after several videos the problem starts.

Google Chrome doesn't show this behaviour, but I would rather stay with Firefox.

Firefox hangs scrolling the newest models on '''Printables''' (https://www.printables.com/model?o=newest). The problems starts occuring several "pages" down the endless list. While scrolling I open interesting models with shift+click. At first opening models starts taking several seconds and some time later I can't scroll further down. Firefox shows a notification: "This page slows down Firefox". '''YouTube '''videos won't start playing (again after opening with shift+click). Sometimes I can get them to start by clicking several points on the timeline and sliding back to the beginning. At first everything is fine, but after several videos the problem starts. Google Chrome doesn't show this behaviour, but I would rather stay with Firefox.

All Replies (1)

more options

Check for malware

If clearing your cookies and cache did not enable you to load the websites that did not work in Firefox, you should check your computer for malware.

Regards, Will