Firefox Support Forum

I had to add Javascript because one of my accounts need Javascript to open. After installing Javascript and allowing for all to be 'true', I still get this message when I try to open a 'show blocked content' in my email.

"The address wasn’t understood

Firefox doesn’t know how to open this address, because one of the following protocols (javascript) isn’t associated with any program or is not allowed in this context.

   You might need to install other software to open this address."

I never had any problem before installing Javascript. Thanks for any solutions.

MP4 videos fail to play with the following error messages:

1. No video with supported format and MIME type found.
2. Video can't be played because the file is corrupt.
3. NS_ERROR_DOM_MEDIA_FATAL_ERR (0x806e0005)
4. Error no decoder found for audio/mp4a-latm

example video #1 on https://tekeye.uk/html/html5-video-test-page

other notes:

• issue began a 1-2 weeks ago
• issue does not exist on chrome browser
• MP4 videos can be downloaded and played successfully in applications other than firefox
• other video formats play successfully in firefox
• issue persists in troubleshoot mode
• issue persists with hardware acceleration on/off
• issue persists with tracking protection on/off
• media.mp4.enabled is set to true

ONCE AGAIN, I am having Hotmail issues through Firefox, and ONLY through Firefox!!! I had to go to PALE MOON AGAIN to use Hotmail. This is getting REALLY irritating. I can go to ANY OTHER website through Firefox with no issue, but Hotmaill? Oh no, of course not. Your damn browser refuses to cooperate and Hotmail just sits there for the past TWENTY-FOUR HOURS with a waiting symbol and stalls out, refusing to do ANYTHING to refresh the page, and when I try and open an email, Hotmail says, "We're sorry, we can't display that message right now." But when I use Pale Moon, NO PROBLEMS WHATSOEVER!!!! FIx your damn browser to work with Hotmail CORRECTLY this is YOUR problem!!! Since it works FINE through Pale Moon the problem is OBVIOUSLY with YOU!!! I am so sick and tired of YOUR BROWSER stalling out and causing issues ALL THE TIME! DO SOMETHING!!!

I can change the color of links and background in Firefox options. But i want only to change the colour of visited links on all pages and NOT also the colors of background and text. These 2 options are connected which is not practically i mean.

Are there addons who could do this? thx

hi,i try to have a TOEFL IBT home edition.and it requests me to download proctoru in my MAC. but i can't download extension through firefox. it says it will take a high risk for my computer. how can i figure it out? thank you!

Hello. All of a sudden i have been getting prompts just before completing gmail sign is asking if i want to switch to html or default.I chose default,tried to sign in again,and got this legacy version of gmail with messages being listed in html format which is brutal.What caused this ? how do i get it back to the way its always been? Whats going on with this,and why is this even happening? Its also saying i used a tablet or mobile device to sign in twice,and i dont ever do that. How can i get it back to the way its always been? Have tried googling all of this but it happens on its own,and sometimes it doesn,t after i sign out of the html ,and reboot,but its unpredictable,and its like stuff has been altered. Thankyou.

i just last night switched to Firefox and i am loving it! the only issue i have is that YouTube does not seem to be able to go over 480p no other website has this issue (for ex twitch) and if this could be fixed i would never go back to chrome

Hello,

 I was having problems with one of my passwords not updating correctly in firefox 105.0.1   I exported all of the passwords into a csv file and then followed the steps outlined here in the forum to turn on import passwords from a file.  Then while trying to fix the password problem I removed all passwords/ids.  I clicked on the import from a file, selected the file I exported to but nothing happens.. No passwords, no id's. I thought maybe I wouldn't see it in the about:logins screen, so  I tested out three different sites from the export file and no luck on anything.  I was expecting a box to pop up telling me the import was successful or if I was sure I wanted to import all of these passwords but nothing, so even though I get the drop down to import I can't.  Has anyone experienced this problem before or any solutions.  

Thanks in advance

Just lately I have been finding that, for a few websites, they are unusable because the screen looks extremely blurred. I have attached a screenshot. Compare this with what you see at ba.com.

I am wondering if this is caused by a new secure feature of FF which is incompatible with these few sites. Really, any suggestions would be welcome. Otherwise I have to use Edge..

When opening an email with an attachment (either a pdf or picture) in Yahoo mail, the Yahoo mail tab closes and I have to then reopen it from History, Recently Closed Windows. It's been dong this for some time now. Does anyone know how to fix this?

Good morning, I have problem with printing on Firefox. On the earlier version view in the filed printers look:" name_printer on print server" but now its look: "\\print_server\name_printer". Please check this because this problem occurs in many users in my company.

This problem not occurs in Google Chrome. Thank you for handling the matter quickly. :)

Firefox continues to indicate I am using Windows 8. I have NEVER used Windows 8 in my liftetime. I use Windows 10 and after locating the program compatibility location to change to Windows 10, Windows 10 isn't an option. I changed my OS to 10 in your box below. Why? I don't understand this.

Anyone can give me a hint how to get rid of the frames around the pictures/shortcuts on the new tab page?

link text

I am really struggling with Firefox after many years of MS Edge & its forerunners. When there is not an envelope icon on a web page, how do I share to email?

Any advice returned by Google seems to be obsolete or only worked perhaps in older versions of Firefox. The main idea of using userChrome.css to override the default styles for Reader View does not seem to work. My userChrome.css file does work on other items though (like removing the sidebar width restriction).

Whatever advice I find via Google perhaps cites outdated CSS selectors, but current selectors do not seem to be documented anywhere by Mozilla. Moreover, I cannot find any file on my local drive named aboutReader.css when using find or grep commands in bash, those this file name is alluded to when viewing a page in Reader View and then in turn viewing source on that transformed page.

Moreover, addons that would allow me to change the colors seem to be restricted in Reader View.

It does seem like something has changed in recent Firefox updates but I can't remember when I last saw, for instance, links in dark mode Reader View that were still pink (whereas now they are blue, and impossibly dark to see, especially when you are disabling as much blue light as possible through your operating system). I need a higher contrast color for links in dark mode Reader View so I can actually see them.

I can alternatively use the Tranquility Reader addon and have custom colors, but A) that addon does not work with the Automatic Reader View addon, whereby I can always have various sites appear in some sort of "reader view" whether the native one or Tranquility Reader, and B) hitting refresh when in Reader View will defeat some soft paywalls but this does not work with, e.g., Tranquility Reader, so I still would prefer to be able to custom colors in the native Reader View feature, rather than rely on an addon.

1. Where are the current styles for Reader View even documented? 2. Is overriding them now restricted? 3. Why did the link color change from pink to blue in newer versions of Firefox (this is a terrible accessibility bug)? 4 .Where is the alluded to aboutReader.css stylesheet actually stored on my computer (it doesn't seem to be a file on the filesystem in the Firefox profiles folder, it seems more like it is embedded in the Firefox binary/executable)? 5. Will Firefox settings ever allow us to set colors specifically for Reader View (I don't mean the override settings for all web pages, particularly web pages not being rendered in Reader View ... that setting does not help in Reader View, nor would it be the desired preference for pages not in Reader View)?

Thank you.

I am looking for a way to make the Firefox tab close button "x" bolder without affecting the background style. I tried using filter but I do not want any shadows or anything like that just to make the item itself not bigger but bolder - any ideas? Thank you all look4