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Apple iCloud Notes App Not Working in Firefox

  • 7 replies
  • 1 has this problem
  • 32 views
  • Last reply by newbie333

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Hey guys, sorry to be making a thread, but I did some Googling and I couldn't find any help...

My problem is that

I also have this problem when I try to open iCloud.com and click on the "Apple Notes app" on my Windows 10 PC it's VERY slow and almost completely unresponsive. This is the error I'll get after a few seconds:

"A script on this page may be busy, or it may have stopped responding. You can stop the script now, open the script in the debugger, or let the script continue.

Script: https://www.icloud.com/applica…t68/en-us/javascript-packed.js:***"

What can I do? Would it help if I uninstalled Firefox and re-installed it?

Thank you!

Hey guys, sorry to be making a thread, but I did some Googling and I couldn't find any help... My problem is that I also have this problem when I try to open iCloud.com and click on the "Apple Notes app" on my Windows 10 PC it's VERY slow and almost completely unresponsive. This is the error I'll get after a few seconds: "A script on this page may be busy, or it may have stopped responding. You can stop the script now, open the script in the debugger, or let the script continue. Script: https://www.icloud.com/applica…t68/en-us/javascript-packed.js:***" What can I do? Would it help if I uninstalled Firefox and re-installed it? Thank you!

Chosen solution

Everything is fine since upgrading the Apple Notes App.

Read this answer in context 👍 0

All Replies (7)

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I hope my question is clear otherwise I can re-write it!

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We have a general support article addressing potential solutions to this issue: Warning Unresponsive script - What it means and how to fix it.

Another common cause of unresponsive script errors on Windows 7-10 is the protected mode feature of the Flash player plugin. That feature has security benefits, but seems to have serious compatibility issues on some systems. You can disable it using the Add-ons page. Either:

  • Ctrl+Shift+a
  • "3-bar" menu button (or Tools menu) > Add-ons

In the left column, click Plugins. On the right side, find "Shockwave Flash" and click the More link. Then uncheck the box for "Enable Adobe Flash protected mode" and try that for a day to see whether it helps.

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I'm going to try that now. Thanks so much!

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Okay I just tried your suggestion, but it didn't work... The "iCloud Notes App" is still very slow and unresponsive...

EDIT: I got this error again:

"A script on this page may be busy, or it may have stopped responding. You can stop the script now, open the script in the debugger, or let the script continue.

Script: https://www.icloud.com/applica…t68/en-us/javascript-packed.js:***"

Modified by newbie333

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I don't use that site so I don't know whether it actually runs well for other people in Firefox. Here are some general suggestions:

When you have a problem with one particular site, a good "first thing to try" is clearing your Firefox cache and deleting your saved cookies for the site.

(1) Clear Firefox's Cache

See: How to clear the Firefox cache

If you have a large hard drive, this might take a few minutes. If you do not see the number going down on the page, you can reload it using Ctrl+r to check progress.

(2) Remove cookies previously set by the site (save any pending work first). While viewing a page on the site, try either:

  • right-click (on Mac Ctrl+click) a blank area of the page and choose View Page Info > Security > "View Cookies"
  • (menu bar) Tools > Page Info > Security > "View Cookies"
  • click the padlock or "i" icon in the address bar, then the ">" button, then More Information, and finally the "View Cookies" button

In the dialog that opens, the current site should be pre-filled in the search box at the top of the dialog so you can remove that site's cookies individually.

Then try reloading the page. Does that help?


If problems persist, could you test in Firefox's Safe Mode? In Safe Mode, Firefox temporarily deactivates extensions, hardware acceleration, and some other advanced features to help you assess whether these are causing the problem.

If Firefox is not running: Hold down the Shift key when starting Firefox.

If Firefox is running: You can restart Firefox in Safe Mode using either:

  • "3-bar" menu button > "?" button > Restart with Add-ons Disabled
  • Help menu > Restart with Add-ons Disabled

and OK the restart.

Both scenarios: A small dialog should appear. Click "Start in Safe Mode" (not Refresh).

Any improvement?

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Thanks so much for your reply!

I just upgraded the Apple "Notes App" and I'm doing some testing now inside Firefox.

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Chosen Solution

Everything is fine since upgrading the Apple Notes App.