Diễn đàn hỗ trợ Firefox

i'm on windows. Suddenly, PDF files that I open have black pages. I checked that the default setting is to open pdf files in Firefox, as always. refreshing doesnt work. Any ideas what is wrong?

I cannot see any of the content or text on PDFs when I open them with firefox. The content and text is still there and I can copy and paste it onto anther document, how can I fix the viewer to be able to see the PDF content on Firefox?

Yesterday I was on the Newsmax website. Today Firefox says its not a secure connection and it won't let me go to Newmax.com. I then tried to use the google browser and it went right to Newmax.com no problem. I am using Windows 7 like I have been for years. Please help. Thanks, Al

The camera won't turn on in the Firefox browser for Google Meet or Zoom. It says it can't find the camera or that it's turned off. I have checked my Windows 11 settings and desktop apps have access to the camera. I have also checked the settings for each of the sites and use of the camera and microphone are allowed. Autoplay is enabled too. The camera works fine in other apps and in other browsers.

Lately, my Firefox browser does not play videos from Dailymail.co.uk. What seems to be the problem? It had been working so well before this until the last few months. I also have an ad block plus extension which I disabled for this site but nothing seems to work so far. I do not have a problem with Microsoft Edge playing videos from the dailymail. Any help?

I am encountering an issue with the Ultimate Addon Image Gallery when viewed in the Mozilla browser. On the user's first visit to the page, the image gallery fails to load promptly, often taking a long time to display. During this delay, a black screen appears instead of the intended images, and the images do not retain their original sizes.

This issue is specific to the Mozilla browser and impacts the user experience. I would greatly appreciate any guidance or troubleshootinghttps://globalstep.com/art-page-revised-v6-33/

With mozilla cant open www.go3.lt from yesterday because do not verify i am a human by cloudflare service. Other browsers like edge or chrome works but my beloved mozilla not :( pls help. I cleared all history, cookies and cash but do not helped.

Secure Connection Failed

An error occurred during a connection to www.myutiitsl.com. PR_CONNECT_RESET_ERROR

Error code: PR_CONNECT_RESET_ERROR

   The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.
   Please contact the website owners to inform them of this problem.

can't download app to let repair person to see my computer. This started after the last download!!!!!!!

I'm sorry I have FIREFOX it causes nothing but problems. No way to actually TALK to someone to get help.

Useless, as far as I'm concerned. Any chance someone can really help me??????

On the newest firefox update on Windows PC My PDF reading has been not displaying PDFs correctly on Firefox I tested on other PDF views and they work as normal (All images are normally white with black text PDFs) Sometimes it displays nothing at all (as seen in Image 1) Some pages will display correctly but the rest won't (as seen in Image 2) Some pages will display text but strangely (as seen in Image 3) It does flash white sometimes while scrolling but it still doesn't show text

When on a web page or e-mail I regularly get a spinning multi colored ball which stops/interrupts the loading of the page. It will last for 3/4/5 seconds and then stop. What's up ??

I want to delete all my bookmarks at once -- I have nearly 1,500. I already asked this question and the response I got showed me how to do this by selecting each one at a time. I want to delete them all, AT ONCE!

Not selecting each one and holding down the CTRL key.

Btw, I already explained this ... so, is there a way. I've tried uninstalling and reinstalling and not keeping the former settings. But the stupid bookmarks keep coming back!

My hotmail Email page stopped opening yesterday morning. I can open the Live.com page on my Android phone and Safari. I Don't like Safari, and I want to be on Firefox on my desktop.

I have used Firefox for years with no problems. The past month, however, I am encountering many problems with my often used web sites. What is going on? I make a purchase and cannot proceed. I have not added any new blockers or anything.

Firefox has become exceedingly slow. I have used Firefox for the most part going back to the beginning save a 2 year stint when Mozilla fell behind and did not update the product in the early years after ver 4. However, the slowness of Firefox is so bad now that I may have to find or use another browser! It is literally that bad! This problem is recent as in the last 45 days as far as my individual needs. I have already gone through the troubleshooting list and made the modifications. That seemed to work for a day or two but the slowness of Firefox is progressively getting worse with each passing day.

The speed is like 3 minutes to 10 minutes when just trying to open a known and commonly used bookmark. Checked against Edge which came with Win 11 and Edge loads within a second or two. So, the problem is not hardware or internet connection. I have one of the fastest speeds on the planet with a true fiber optic connection as I am close to the backbone location in my city. We are talking 2.1gig down and 820MB up. Tested against two different speed tests. The problem is with Firefox specific. Mozilla needs to address this issue as it seems to be an ongoing problem across several IOS platforms.

I have an mp4 (h264 AAC) video of 37MB which plays acceptably from my website in Safari, Chrome and Edge, but when played in Firefox (my default browser) the sound and picture synch is significantly seperated. When the video is compressed to 26MB it suffers some expected loss of sound quality but plays with near perfect lip synch. What is the issue with playback ?