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

Issues with Firefox browser on Mac OSX

  • 2 replies
  • 1 has this problem
  • 4 views
  • Last reply by FredMcD

more options

In the past three weeks, I have been experiencing issues with the Firefox browser on my iMac MacOSX. First, the browser, after some amount of time of usage, seems slower. Second, if I keep windows with multiple tabs open overnight and then try to use them, they don't seem to function. The YouTube videos will not play. I can't move the tabs. I need to close the tabs and window altogether to get YouTube to function. Lastly, as of now, I can't even select and move tabs. I have never experienced this problem with Firefox on my iMac.

Prior to this I don't remember having these issues. What has changed?

In the past three weeks, I have been experiencing issues with the Firefox browser on my iMac MacOSX. First, the browser, after some amount of time of usage, seems slower. Second, if I keep windows with multiple tabs open overnight and then try to use them, they don't seem to function. The YouTube videos will not play. I can't move the tabs. I need to close the tabs and window altogether to get YouTube to function. Lastly, as of now, I can't even select and move tabs. I have never experienced this problem with Firefox on my iMac. Prior to this I don't remember having these issues. What has changed?

All Replies (2)

more options

gesar_o said

First, the browser, after some amount of time of usage, seems slower.

About how long before the problem shows up? What were you doing at the time? surfing, watching a clip, reading something . . . .


Start Firefox using Troubleshoot(Safe) Mode {web link}

A small dialog should appear. Click Start In Troubleshoot(Safe) Mode (not Refresh). Is the problem still there?


https://support.mozilla.org/kb/Firefox+is+already+running+but+is+not+responding

https://support.mozilla.org/en-US/kb/firefox-slow-how-make-it-faster

https://support.mozilla.org/en-US/kb/firefox-uses-too-many-cpu-resources-how-fix

https://support.mozilla.org/en-US/kb/firefox-uses-too-much-memory-ram

https://support.mozilla.org/en-US/kb/firefox-hangs-or-not-responding

more options

gesar_o said

Second, if I keep windows with multiple tabs open overnight and then try to use them, they don't seem to function.

Many have reported slowness/freezing when the browser is left open but not being used.