Firefox Support Forum

Any streaming video that I view on Firefox stutters, is choppy and very irritating to try and watch. I opened up Internet Explorer and found that I don't have those issues. This occurs on YouTube, Facebook, and all other videos that I attempt to watch.

Before the update everything was working fine, but yesterday after the update I noticed that whenever I open a page and after that I hit back button, it doesn't reload the page like before. It's annoying, because I use forum and sometimes is confusing when I open a thread and after that it still says that "new thing", the only way to remove it is to reload the page from the refresh button.

I uninstalled Firefox from my computer, then I reinstalled it and tried to run it, but this message appeared, "Your Firefox profile cannot be loaded. It may be missing or inaccessible" and Firefox does not open at all.

I opened a you tube video sent by a friend and it infected my computer with the S3 ytimg virus. The anti-virus software I use does not seem to remove it and it has caused my computer to operate very, very slowly.

...Pretty much exactly like the title says. I checked the plugin checker after updating to Firefox 30 to see if there was anything that needed updating. Of course, there was: Shockwave and "Adobe Acrobat NPAPI Plug-in".

While I was able to get Shockwave up to date just fine, the Adobe Acrobat NPAPI Plug-in is presenting some trouble. As in, when I click "Update Now", instead of redirecting to an update page, it redirects right back to the Plugin Check page.

Where can I go to update this plugin? Does it need to be updated? Is this a glitch in the checker, and therefore I don't need to do anything?

For the past few weeks my web browser keeps freezing up on me and i get the message on top of the browser saying not responding. I thought my computer was all cluttered with files or cookies. So I reinstalled my windows 7. In the process deleting everything on my computer. I thought this was going to fix the problem but no luck. It is still doing the same thing.

Security exceptions have NEVER worked correctly for me, and I'm sick of it. Someone please help with this.

First of all, I posted about this months ago, the thread can be found here: https://support.mozilla.org/en-US/questions/965352 . No personal ill-will toward the folks who responded, but none of the replies were helpful. Most were not even APPLICABLE. (This includes the final one, that I didn't respond to.)

Briefly: Occasionally, seemingly at random, a site (often one I've previously accessed with no problem) will start giving me the "This connection is untrusted" screen I'm sure you've all seen occasionally, ostensibly because of invalid security certificates, but in reality for no damn reason at all, at least not that I've ever been able to discern. I then click on the "I understand the risks => Add exception" option - unlike some others who have similar issues, I DO get this option, it's not greyed out or anything. This brings up the "Add Exception" dialog as expected, but apparently it's merely decorative, because when I click the Confirm Security Exception button at the bottom, LITERALLY NOTHING happens. The box doesn't close, no error message comes up, there is no visible change of any kind. I hope I'm being clear, when I say LITERALLY NOTHING happens I mean LITERALLY NOTHING happens.

(Sorry if that sounds condescending, but you'd be amazed at the number of times I've said something like that and the *immediate* response is something like "What did the error message say?". And looking at it from the other side, having done tech support, you'd be equally amazed at the things customers described as "nothing happening" that could not possibly be further from "nothing", including error messages that plainly spelled out what the problem was! I'm just trying to (a) avoid the first scenario, and (b) make it clear that this isn't an instance of the second one...)

To belatedly respond to the last message in the previous thread:

* I am NOT in private browsing mode
* There are no intermediate certificates involved (and even if there were, I would have no clue, based on that message, about HOW to get them). 
* Also, it's a very bad sign that this message expressed doubt about whether I had an option that my original post quite explicitly spelled out that I *did* have. Again, no personal ill-will, and I know the OP in that thread was rather long, but even so, that kind of thing makes me wonder what *else* about the problem the person responding might have misunderstood.

Anyway. Hope that's clear enough, if anything isn't, please ask. I'm happy to answer questions about my settings and whatever else might be relevant, much less happy to correct faulty assumptions after the fact. It seems that significantly more people than me have this problem, let's see if we can get it resolved once and for all.

I have a laptop with Windows 7 Home Premium x64, which I had to reinstall recently because of some hard drive problems. I used to be able to play MP3 audio files directly on Firefox, when I clicked a link to a MP3 file a new tab would open and the audio would start playing. But now I get a window asking me whether I want to open it (with Windows Media Player by default), or save it, and I can't play MP3 files with HTML5 <audio> tag, supposedly my browser doesn't support it. I've read that in Windows 7 Firefox plays both H.264 and MP3 through Media Foundation, and I can play H.264 videos without problems, so I guess it's some problem with my MP3 codecs or something, though I can play MP3 files with Windows Media Player. Also, media.windows-media-foundation.enabled is set to `true' in about:config, so it's supposed to work, but it doesn't.

What can I do?

Today, I wanted to view a model on thingiverse using their thingyview. This javascript 30 viewer uses webGL. I remember using it in former firefox versions quite often.

Now, it won't work. It works in Google Chrome and Opera with no problem, so I assume this must be problem of browser configuration, not drivers.

I work on PC and was going through my history 6 months and older to see the links I needed to save and delete what I didn't need.

I was deleting three links when the whole thing just went blank. I desperately need to retrieve this history as I need it for work.

I was wondering what to do and if restoring my system to a previous version will affect my firefox history? Please help!

Firefox safe mode does not solve the issue. Disabled and also uninstalled antivirus and firewall and did not help. Disabled all startup items except the ones known not to cause the problem. Other browsers such as Chrome has no problems. Mozilla Thunderbird also will not connect.

Just looking for an extension or plugin to download .apks from the Play Store to my desktop. I'm talking legally purchased or officially free ones. Chrome has it, but I don't use chrome. I also don't have anything Google on my phone other than, arguably, the OS, which is CyanogenMod. There are apps I'd purchased when I was still running the default OS and I'd like to have them back.

sir,

when i tried to open this website http://www.pointdollars.com/ it's not loading and displaying error "your connection to this website is not encrypted. please help me, i really need this website..

I have read and applied all the fixes from previous responses to this problem and nothing works. Scrolling through Facebook is a nightmare with the page re-loading every 10 seconds, and creating a visual disturbance on screen. Please advise a permanent fix. Thanks

Pages keep redirecting themselves automatically to http://ww94.btosjs.info/ and I can't browse websites properly. Is there a way to fix this?

I'm using Firefox 26 in Windows 7 x64 SP1.Since yesterday I can't play Youtube HTML5 videos. I have the HTML5 player activated in http://www.youtube.com/html5 and when I try to play a compatible video, like this one: http://www.youtube.com/watch?v=BGBM5vWiBLo I get a big 'loading' animation and nothing happens.That same video is playing without a problem in Internet Explorer 11.

Thanks for your help.

Within the last few days I have noticed that video on every single website is constantly playing poorly. The motion is perpetually jerky, stilted, and choppy EXCEPT when I play the video in full screen and then it plays perfectly. Also, only the visual portion of the videos are affected, not the audio. This problem only exists for me on Firefox. I have tried other browsers where the same videos played without issue.

I have tried re-installing Flash, turning off hardware acceleration, changing refresh rates, and a host of other fixes I have found online via Google searches. I have never experienced this issue before and was dismayed when nearly every situation even remotely like this that I found was dated to last year or earlier as I had presumed that others may currently having the same issue.

I have not added any new add-ons or plug-ins recently to my knowledge and I am the only one to use this computer (MBP). Any recent changes would be attributed to various updates that would have happened as I make sure that all things are kept up to date as much as possible. I would really rather not have to use Safari every time I wish to watch a video online.