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Modified by NoahSUMO
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If you use extensions (Firefox/Tools > Add-ons > Extensions) that can block content (e.g. Adblock Plus, NoScript, Flash Block, Ghostery) then make sure that such extensions aren't blocking content.
Start Firefox in Safe Mode to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem.
- Switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance
- Do NOT click the Reset button on the Safe Mode start window
Hi CS777, you probably have noticed the NoScript icon on the toolbar. If you see the red circle-slash symbol over the blue S, NoScript is blocking some or all scripts on the page. Use the button to approve the scripts you want to run and let the page reload. Usually you can figure out which ones are important on the first or second try, although in some cases it is not obvious and the list is flooded with advertising, tracking, sharing, and other servers that obscure the important ones. If you do not find that the benefits of using NoScript outweigh the burden of constantly approving sites, then it might not be the best extension for you.
I'm not using them myself, but it is always possible that such extensions block wanted data. If you do use them then it is up to you to be aware that things can get blocked and if necessary allow specific objects on websites in the extension.
Hi CS777, I see from your other post that disabling NoScript and Adblock Plus did not solve the problem.
After disabling extensions, you may need to exit and start Firefox up again to make sure that they are turned off. In that case, you would see a link for that purpose on the Add-ons page after clicking the Disable button.
Is there a particular site where you have this problem? Maybe it's a problem with the site or with a plugin the site wants to use? Please provide a link or get as specific as possible.
Can you attach a screenshot?
- Use a compressed image type like PNG or JPG to save the screenshot
- Make sure that you do not exceed the maximum size of 1 MB
These 2 are definitely disabled, I've restarted several times, it's not site-specific. It's random. When I want to go forward on page by using an arrow button, or a page number, or "Next", or drop down menu for loading the next page, I get blocked.
My screenshot button isn't working
In order to generate that error on Oracle's test page (https://www.java.com/en/download/installed.jsp), I need to switch a preference to a non-default setting. Try switching it back to its default value of false:
(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 that appears above the list, type or paste java and pause while the list is filtered
Finally!----I got through to verifying Java. I tested another site I had trouble with this morning and it works. Hopefully, this will fix every occurrence.
Thanks for your help and will keep the info for future reference.
My problem was solved a few minutes ago (see above), but I'm not savvy enough to understand your question. I've never known how much I've ever needed Java. Seems like it's always been there and I've gone ahead with auto updates.
Also, my print screen button won't work. It's also the End button. It has worked in the past; again, don't know what changed.
Can you help me with this or should I start a new thread?
Hi CS777, to answer your question about that preference, it relates to the protocol at the beginning of the link. For example, on the Java test page, the link was like this:
(Normally, the value of the href attribute start with the http: or https: protocol, or sometimes ftp: or mms: for specialized applications.)
On Print Screen, yes, a new question is a good idea.
I've never been to that page to set it to true. Something changed a few months ago. Any idea what it could be?
It would take a long time to type out all the possible guesses and I'm not sure it would be very useful...
If it happens again, check for a user.js file containing a reference to that preference as described in this article: How to fix preferences that won't save. That wouldn't tell you who/what created the file, but it would explain how the change got injected.