Firefox Support Forum

When viewing email on Outlook in Firefox, there now appears a rectangular black box over part of every email. This does not occur when viewing Outlook emails on Chrome or Edge. I thought it might be because of my adblocker (Ublock Origin) so I turned it off, but the black rectangle still covers part of my messages (and I have Ublock on Chrome, too, with no problem viewing Outlook).

The rectangle covers only a portion of the messages. When I scroll the message, the black rectangle remains stationary and the message scrolls behind it, thus revealing the portion previously covered by the black rectangle (a different portion of the message becomes covered).

I tried to take a screenshot to show the black rectangle covering part of the message. Amazingly, even though the black rectangle is there when I take the screenshot, the screenshot itself does not display the black rectangle....instead the message appears in the screenshot without being partially covered by the black rectangle.

When visiting sites such as the Russian Wikipedia, characters that are in the Cyrillic Times New Roman font display as blocks (shown in image). Safari does not have this problem.

Firefox is steadily being unusable for me. On numerous occasions websites fail to show log in pop ups etc which work without issue in Chrome. Latest example : https://www.gog.com/en/games Clicking "Sign in" should show a pop up to allow me to sign in. In Firefox this does not show. I thought it may be a "pop-up" issue, so deselected "Block pop-up windows" in settings. Still the same. I added the website as an exception and still the same. Anyone have any ideas what is going on ? TIA, ZTB

When I try to log on to hmnow.com, all I get is a white screen. I worked with Hallmark support, but they couldn't figure it out even though I have a paid subscription with them. I've rebooted my Mac and it says I have the latest Firefox version installed. This has gone on for weeks. I've had no problem with any other website.

I'm getting a blank/black screen when I try to signup for Disney Bundle....

https://www.disneyplus.com/en-gb/sign-up?type=bundle

What's going on...my settings? Which one/s...

I have always ordered my groceries through HY Vee Aisles on line. The display is not the same on firefox as is previously was. I have to go to Chrome. I have cleared everything, restarted and gotten rid of cookies.

Amazon "Returns & Orders" page will not load... Mac/Firefox computer even it trouble shoot mode. Page just continues to partially load and repeats until I stop it.

Hello, I am trying to download some txt files via firefox in an automatic fashion using the python webbrowser API. Firefox opens the txt files directly in the tab, which leads to all kind of unwanted behavior when trying to use the right click save option. Is it possible just to save the txt files? Looking at previous forum entries, I tried changing the Content-Disposition and Content-Type via plugin, but they did not seem to affect the link given. Thanks

Recently YouTube videos have stopped playing when I'm using the Firefox browser on Windows 10. This has occurred both on my laptop and on my desktop computer. The player, surrounding website, comments, description, etc. all load correctly. The video does not, instead displaying either the video's thumbnail and a buffering symbol, or a blank black screen and a buffering symbol. The time codes on the video load correctly. Ads do not play either, and instead after about 15-30 seconds of buffering the "skip ad" button appears in the lower right hand corner of the video. Videos play normally on both Chrome and Edge, and all other media content appears to load correctly (music/spotify, videos on social media websites, etc.)

So far I have tried: - Running Firefox in troubleshoot mode - Refreshing Firefox - Clearing the cache - Disabling and re-enabling hardware acceleration (didn't work either way) - Uninstalling and reinstalling Firefox - Rebooting my machine - Waiting for the problem to fix itself (it's been two weeks on my main desktop/tower and it's still not working).

At this point the only thing I haven't tried is messing with advanced config settings, and I'm avoiding that since I have no idea what any of them actually do (despite what certain reddit threads recommend).

As far as I'm aware, no specific update to either of my machines or Firefox has preceded the issue appearing. It's been going on on my desktop computer for about two weeks, the problem just started on my laptop last night.

It's worth nothing that I usually use UBlock Origin, Simple Tab Groups, and Facebook container. Those extensions are not currently installed since I had to reset my browser in the process of trying to fix the issue.

I can also confirm it's not an internet issue; speed tests show normal download/upload speeds for my wifi, and those have not varied since the issue began. All of my drivers are also currently up to date.

I have Firefox 99.0.1 (64-Bit) now & have not had a problem in the past accessing https://customer.xfinity.com/#/services/internet#usage.

Now, it partially loads & often get the "SSL_ERROR_BAD_MAC_ALERT" error.

In looking it up, this error appears to be specific to Firefox.

It was an issue 3 years ago: [https://support.mozilla.org/en-US/que.../1256432].

For the past few years, Firefox has had more problems with websites that work fine in other browsers, even the EDGE browser. Even in the 3-year-old bug mention above, it works in other browsers, but in the Firefox browser fails.

Firefox needs to fix this bug. It should not be an issue for over 3 years, especially when it works fine in other browsers.

Hi. In the past week, my Firefox has been giving me this message for many sites - all of which I've landed on before and I trust. Firefox wants me to contact the website owner which is not do-able. Any suggestions? Thx!

Here's the error msg I get: An error occurred during a connection to www.google.com. PR_END_OF_FILE_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.

I get the message "Oops. Your browser is no longer support..." from tubitv.com and the error message "We are having troubling playing Netfix. Please make sure you are using the latest....Error Code: F7701-1003" from NetFlix.

Is this an issue with Firefox?

It seems to work fine with Edge. I have not tried with any other browsers.

Thanks

How can I fix this? Warning: Potential Security Risk Ahead

Firefox detected a potential security threat and did not continue to 4njbets.us.betfair.com. If you visit this site, attackers could try to steal information like your passwords, emails, or credit card details.

What can you do about it?

The issue is most likely with the website, and there is nothing you can do to resolve it.

If you are on a corporate network or using anti-virus software, you can reach out to the support teams for assistance. You can also notify the website’s administrator about the problem.

Some websites add some annoying animation effects into their website's title (that shows in the tab title).

Example: This website: https://colourpop.com/ If you switch to another tab for several seconds, it starts flashing a message, "Hey, where'd you go?". I'd like to be able to disable this and any similar animations that can potentially be added to a website's title. Is this only possible by disabling some scripts and/or using UBlock, etc, or can I do this within Firefox?

Thank you,

Hi and thanks for your good app The following website is not loaded in the Mozilla version, but it is easily loaded in EDGE How can I open this site with Mozilla? website : https://app.setareyek.ir/

I have been unsuccessful in finding a solution in searches, so posting here. On one website I use, a machining forum, when I want to reply to a post, I have no text edit options ie bold, italic, emojis, etc. They are there, but grayed. They have worked previously for me. I don't know what changed like a setting on my part or an upgrade. I currently run Firefox version 99.01. I asked on the forum and other users have the same version and no problems. I can access the page with Chrome and on my phone (Android) and no problem so it is not my account. And on other forums, I ie different websites, I can use those functions. I have removed history cache and cookies, restarted Firefox and restarted the laptop.

Any suggestions?