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Firefox 23 has made it impossible to run our product. How do we roll back to version 22?

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New Contributor

Firefox 23 has made it impossible to run our product. How do we roll back to version 22?

We have a product that uses a java applet to run it. Until Firefox 22 (and for all previous versions), we could depend on the Firefox to work with our product, even when no other browser would. We need to be able to remove FF 23 and re-install FF 22. I've tried all the recommendations to fix the problem, but nothing works. Our Apple customers are the ones who are most affected because neither Safari 6, Chrome nor Firefox will run our product. Our PC customers can run IE.

How do I download Firefox 22? I have a saved copy of the FF 21 installer for PC but not for Mac.

I know that this goes against Firefox advice, but I'm instructing my company and my customers to turn off automatic updates for Firefox until such time that we can use future versions.

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Legendary Contributor

Re: Firefox 23 has made it impossible to run our product. How do we roll back to version 22?

By default, web pages are limited to loading files in the same directory and subdirectories. To relax that restriction, you can toggle a setting in about:config. This isn't new, but in case this setting now affects your application in some new way, do you want to try it?

The about:config method should work for about:newtab, but extensions can override it (and a user.js file can revert it at the next startup).

(1) In a new tab, type or paste about:config in the address bar and press Enter. Click the button promising to be careful.

(2) In the search box above the list, type or paste file and pause while the list is filtered

(3) Assuming it is set to its default value of true, double-click the security.fileuri.strict_origin_policy preference to toggle it to false.

Any difference?

29 REPLIES
Site Moderator

Re: Firefox 23 has made it impossible to run our product. How do we roll back to version 22?

I'd rather help you fix whatever it is that is causing issues than have you use Old versions of Firefox and telling your customers to use old versions. That leaves you and all your customers at serious security risks.

Can you give a link and maybe describe what issue you are seeing? Are you running into Mixed Content Blocking? Mixed content blocking in Firefox

Site Moderator

Re: Firefox 23 has made it impossible to run our product. How do we roll back to version 22?

Does Java start at all?

Can you open the Java Console to check for error messages?

Legendary Contributor

Re: Firefox 23 has made it impossible to run our product. How do we roll back to version 22?

Just a note that if the problem is created by the available Java runtime being added to the blocklist, rather than a feature change or bug in Firefox 23, that will affect all versions of Firefox. See: Add-ons that cause stability or security issues are put on a blocklist.

New Contributor

Re: Firefox 23 has made it impossible to run our product. How do we roll back to version 22?

Tyler,

This is not a mixed content issue. The message that mixed content was blocked isn't being displayed. In fact, I found the toggle for disabling mixed content blocking and set it to false, but it doesn't matter.

Our product is offline content that requires a web browser, thus I cannot provide a link.

I have ensured that Java 7U25 is installed, verified, and activated. It and all previous versions of Java have worked in all previous versions of Firefox until now.

Now the java applet required by our product never starts. When the product is launched, the following message is displayed:

Loading Java applet...

Then, the following error message is displayed:

The Java Applet required for this viewer has not loaded. Please ensure that you have enabled or allowed the applet to load or verify you have Java installed http://www.java.com

I don't know if this is a Firefox message or if it's coming from our product, but in either case, Java is being blocked, and the only thing that has changed is FF22 -> FF23.

If I cannot make FF 23 work, I have no choice but to advise my company and customers to disable the auto update feature of FF for versions < 23.

FFDJP

New Contributor

Re: Firefox 23 has made it impossible to run our product. How do we roll back to version 22?

No, Java isn't starting at all.

I have installed, verified, and enabled Java 7U25.

This worked without problems for all previous versions of FF and Java.

Site Moderator

Re: Firefox 23 has made it impossible to run our product. How do we roll back to version 22?

Are there any errors in the Web Console (Firefox/Tools > Web Developer;Ctrl+Shift+K) related to Java?

If content is missing or otherwise not working when a secure https connection is used then check if there is a shield icon to the left of the "Site Identity Button" (globe/padlock) on the location bar indicating that content is blocked.

New Contributor

Re: Firefox 23 has made it impossible to run our product. How do we roll back to version 22?

Blocklist of the JRE isn't the issue.

New Contributor

Re: Firefox 23 has made it impossible to run our product. How do we roll back to version 22?

HTTPS is not the issue. This is an offline product, not an SSL secured website.

New Contributor

Re: Firefox 23 has made it impossible to run our product. How do we roll back to version 22?

Sorry, missed your questions about the Web Console.

The answer is No. I see no Java related errors or warnings.