Latest Firefox issues
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- Revision id: 26349
- Created:
- Creator: Swarnava Sengupta
- Comment: added the Share this article template
- Reviewed: Yes
- Reviewed:
- Reviewed by: Swarnava
- Is approved? Yes
- Is current revision? No
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Revision Content
This article lists the latest Firefox issues and their solutions.
In addition to keeping your computer and personal information safe, the most recent version of Firefox contains fixes for many issues that were a problem in earlier versions.
Table of Contents
- 1 Java doesn't work
- 2 PDF files are blank and can't be downloaded
- 3 Firefox 12 is the last version of Firefox that will work with Windows 2000, the original version of Windows XP or Windows XP Service Pack 1
- 4 Firefox 12 release notes
- 5 "TypeError: Components.classes[cid]" popups
- 6 Some rich text editors may not work on certain pages
- 7 3D YouTube videos do not work with certain NVIDIA 3D setups
- 8 Firefox 11 release notes
- 9 Firefox 3.6 is no longer supported
Java doesn't work
PDF files are blank and can't be downloaded
When you install or update Adobe Reader, it installs a plugin for viewing PDF files inside Firefox and sets that as the default. The problem is that this plugin does not work. In order to view PDF files again follow these steps:
- In the Menu bar at the top of the screen, click and then select or , depending on your macOS version.Click the menu button and select .
- Select the panel.
- Type pdf into the search bar.
- For each content type listed, click on the drop-down menu in the Action column and change the selection to use Adobe Reader, Preview or PDF Browser Plugin (if you are using the Schubert PDF plugin).
- Close the page. Any changes you've made will automatically be saved.
For more ways to view PDFs in Firefox, see View PDF files in Firefox or choose another viewer.
Firefox 12 is the last version of Firefox that will work with Windows 2000, the original version of Windows XP or Windows XP Service Pack 1
If you use these versions of Windows you will have to update Windows in addition to Firefox in order to keep receiving security and stability fixes. For details and what to do if you can't upgrade, see:
Firefox 12 release notes
Check the known issues section of the release notes for a list of minor problems.
"TypeError: Components.classes[cid]" popups
Firefox will open popup an error message that begins with TypeError in a number of situations. Most often this is caused by a misbehaving extension. See Firefox error messages – what they mean and how to fix them for details.
Some rich text editors may not work on certain pages
Rich text editors on pages based on Prestashop, Drupal, Moodle, concrete5, plone, modx, Mambo, Cascade Server CMS may not work properly in Firefox 11. For workarounds see Some rich text editors do not work in Firefox 11
3D YouTube videos do not work with certain NVIDIA 3D setups
If you have a 3D setup using NVIDIA graphics cards and drivers, you may find 3D YouTube videos do not render in 3D and are "flat" instead. See 3D videos do not work with certain NVIDIA drivers in Firefox 11
Firefox 11 release notes
Check the known issues section of the release notes for a list of minor problems.
Firefox 3.6 is no longer supported
Firefox 3.6.28 is the last version of the old Firefox and won't be updated.
- Please see, Firefox 3.6 is no longer supported for upgrade options.