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MP4 files won't work in Firefox

As the title says, I cannot get MP4 files to play in Firefox, which renders several websites unusable. These sites work in Edge just fine, but I cannot get them to work i… (read more)

As the title says, I cannot get MP4 files to play in Firefox, which renders several websites unusable. These sites work in Edge just fine, but I cannot get them to work in my preferred browser. Everything is up to date, and I have all the codecs I could ever need installed, as well as the Windows N Media Feature Pack. The browser has been tested several times in troubleshooting mode, and I've even gone as far as running Windows in safe mode with networking to try to isolate the issue. I cannot get it to work at all. This is the 2nd device I've had this issue on, and it's driving me up a wall.

Any help or advice would be greatly appreciated.

Firefox 103.0 (64-bit) Windows 10 Pro N 21H2 19044.1865

Asked by natas.hastings 1 year ago

Answered by jscher2000 - Support Volunteer 1 year ago

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Firefox Desktop tabs not opening

Hello. I have had an issue with new tabs not opening in Firefox for about two days. My browser is updated to the latest version. The best way to describe the issue is lik… (read more)

Hello. I have had an issue with new tabs not opening in Firefox for about two days. My browser is updated to the latest version. The best way to describe the issue is like this: every time I boot up the browser, everything will be working fine. Then, within 4-5 minutes, tabs will stop opening. Every time I want to open a new webpage in a new or already existing tab, it will get eternally stuck on the loading stage. However, if I have something like a youtube playlist running in one of the tabs, it will switch from video to video with no problem. If I close the browser and try to open in again, it won't open (although I've already figured out that the latest issue can be solved with an administrator mode). Other browsers are working fine and don't have such issue.

I have tried reloading the browser, reloading the computer, cleaning cache/history/cookies, running the browser without any addons, running the debug mode, reinstalling the browser (twice), running the antivirus check, creating a new firefox profile. Nothing helps. Also, the problem persists in the debug mode - when I open it, the pages load for 3-5 minutes and then the tabs stop opening as well.

Please suggest what can I do to fix this issue.

Asked by selinakyle 1 year ago

Answered by jscher2000 - Support Volunteer 1 year ago

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Icons Doubled in Size

When I installed version 103 on Windows 10 yesterday, the Tabs, address panel row of icons and the onscreen bookmarks icons doubled in size pushing about half of them off… (read more)

When I installed version 103 on Windows 10 yesterday, the Tabs, address panel row of icons and the onscreen bookmarks icons doubled in size pushing about half of them off screen. Can I get them back to the size the were?

I keep them on screen to facilitate use and work more effectively. Pushing them off screen reduces the effectiveness of Firefox for me. I spent too much time today trying to find options that would allow me to revert to the former format without uninstalling v.103 - without success.

HELP!!!!

Asked by rabbit 1 year ago

Answered by rabbit 1 year ago

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Firefox is too big (have already tried scroll wheel zoom, layout.css.devPixelsPerPx, compact mode and many, many more)

Every time Firefox updates itself, all of the text and images and page layouts become huge. I have tried every single fix that is usually suggested for this issue: Zoom … (read more)

Every time Firefox updates itself, all of the text and images and page layouts become huge. I have tried every single fix that is usually suggested for this issue:

Zoom out with scroll wheel: Makes text smaller (and images, if I disable zoom text only) but does not fix page layouts (ex. Google search still has a horizontal scroll bar, even in full screen.)

layout.css.devPixelsPerPx: No effect at all. Can be made bigger at values over 1.0, but not smaller.

Compact mode: Sizes down the toolbar, but nothing in the webpages themselves.

Refresh Firefox: Still huge.

Safe Mode: Still huge.

Disabled all extensions: Still huge.

Complete uninstall with all leftover system files removed with RevoUninstaller, then reinstall: Still huge.

Other browsers: Display correctly. Absolutely no issues with size, including Firefox forks like Librewolf. (See attached image for direct comparison between the two browsers.)

I can temporarily alleviate the issue by using a restore point on my computer from about a week ago but when I opened Firefox this morning, it bumped me to an update page, and everything was huge again.

I was previously using a non-native screen resolution while I was recovering from surgery in bed and the screen was too far to see at 1920x1080. But I did not have this problem for two months of recovery. It started just a couple days ago. Returning the screen to its native resolution has not resolved the issue. Firefox, and only Firefox, is still enormous.

Asked by pooklet 1 year ago

Answered by jscher2000 - Support Volunteer 1 year ago

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Firefox Zoom stuck at 110% after update.

Hi! Firefox updated to 103.0 (64-bit) tonight and now zoom is at 110%. I have gone in and put it back to 100% but it's not changing. When I go back and look, it's right … (read more)

Hi!

Firefox updated to 103.0 (64-bit) tonight and now zoom is at 110%. I have gone in and put it back to 100% but it's not changing. When I go back and look, it's right back to 110%.

How can I fix this?

Thank you!

Asked by phantomcat71 1 year ago

Answered by Terry 1 year ago

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outlook.com access

I canNOT access outlook.com (using Mac Monterey) - it was working a couple days ago and now all I get is a blank screen. I can access it using Chrome so I'm thinking thi… (read more)

I canNOT access outlook.com (using Mac Monterey) - it was working a couple days ago and now all I get is a blank screen. I can access it using Chrome so I'm thinking this is a Firefox browser issue. I'd REALLY like to continue using Firefox but need to access it on the same browser I've been using.

HELP!!

THANK YOU!

Asked by azutkempton 1 year ago

Answered by Chris Ilias 1 year ago

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YouTube videos refuse to play now

So I have never had a problem with YouTube up until yesterday, anytime I try to watch a video and click play or anywhere on the video it just has a circle that spins in t… (read more)

So I have never had a problem with YouTube up until yesterday, anytime I try to watch a video and click play or anywhere on the video it just has a circle that spins in the middle around a youtube button, or sometimes just a black screen.

I have tried clearing Cookies & Cache, tried in safe mode, tried with a new profile, disabled hardware acceleration, I even uninstalled and re-installed Firefox.

Still for some reason I am unable to watch videos and only on Firefox, it works fine in Chrome and Edge browsers.

I am at a loss on how to fix this, and I really don't want to have to use two browsers for watching videos and navigating the internet.

Any Ideas?

Also my Internet is not the problem, I have Gigabit Fiber.

Asked by omglulzfunny 1 year ago

Answered by omglulzfunny 1 year ago

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I can't access my home router

Hello, I can't access the home router. 192.168.1.1 results in "Secure Connection Failed" and nothing can be done. How can I solve the problem? Please answer me at [email… (read more)

Hello, I can't access the home router. 192.168.1.1 results in "Secure Connection Failed" and nothing can be done. How can I solve the problem?

Please answer me at [email]@yahoo.com

Best regards, Ioana Udrea

Asked by udreaioana23 1 year ago

Answered by jscher2000 - Support Volunteer 1 year ago

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The size of the icons on the toolbar

Is it possible to change the icon size on the toolbar? I've been trying all morning to find the solution, but unfortunately without much success. Help me, please Ania … (read more)

Is it possible to change the icon size on the toolbar? I've been trying all morning to find the solution, but unfortunately without much success. Help me, please Ania

Asked by diuna2004 1 year ago

Answered by TyDraniu 1 year ago

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Ui and bookmarks toolbar problem's after 103 update

i really hate when forcing a new features without clear or easy way to disable it ..started the the download icon new annoying behave. now i have 2 more problems.... 1.h… (read more)

i really hate when forcing a new features without clear or easy way to disable it ..started the the download icon new annoying behave. now i have 2 more problems....

1.how can i disable this one ( Windows' "Make text bigger" accessibility setting now affects all the UI and content pages, rather than only applying to system font sizes) it was ok before update i want to remove this new one i don't like the UI auto resize..

2.after updating to 103 my bookmarks toolbar stopped working.. now its it's empty and i cannot add any new bookmark by select and drag the only thing i can do to show or hide this blank bookmark toolbar how to fix it ?

Asked by WinterAutumn Boy 1 year ago

Answered by rogéz 1 year ago

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Firefox Developer Edition wont open Discord hyperlinks

Discord hyperlinks will no longer open when Firefox Developer Edition is selected as my default browser. They open fine in both Firefox, Microsoft Edge, and Google Chrome… (read more)

Discord hyperlinks will no longer open when Firefox Developer Edition is selected as my default browser. They open fine in both Firefox, Microsoft Edge, and Google Chrome when selected as Windows 11's default browser. When selecting my default browser it would show 2 instances of Firefox Dev but after uninstalling then reinstalling it there is only one instance in the default app list. I'm not really sure where to go from here. Maybe this is an issue with the latest version of Dev Edition or is this an issue with my Windows?

Thanks

Asked by yohaun 1 year ago

Answered by yohaun 1 year ago

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Zoom change in firefox 103, how to undo it?

Firefox 103 screws with website zooming if you use the "Make text bigger" accessibility setting in Windows. 150% for example now zooms in a lot more with the accessibilit… (read more)

Firefox 103 screws with website zooming if you use the "Make text bigger" accessibility setting in Windows. 150% for example now zooms in a lot more with the accessibility setting in Windows set to 120%.

How do I undo this change so that 150% is 150% and not bigger than 150%? I had all my frequented websites set up how I liked it and now this comes along and messes it all up >:V at the moment it seems like 120% Firefox + 120% Accessibility is similar to what 150% in Firefox was like but it's not exactly the same. I've now gotta go futz with zoom levels for each web page I frequent again to find what looks most comfortable for each one.

Also this change greatly modifies consistency when it comes to the granularity of zooming. For example, what is 100% zoom when Accessibility is set to 120% so that I can avoid filtered scaling being applied to pictures? Why is the in-browser percentage indication not accurate with the level of zooming actually being applied?

The zoom level I choose is no longer the zoom level applied, there is now a multiplier in effect. So 50% isn't 50% anymore, 60% isn't 60% anymore, 70% isn't 70% anymore, 80% isn't 80% anymore, 90% isn't 90% anymore, 100% isn't 100% anymore, 110% isn't 110% anymore, 120% isn't 120% anymore, 130% isn't 130% anymore, 140% isn't 140% anymore etc.

A website that looked good at 133% can no longer be viewed at 133% if the Accessibility setting isn't also 133%.

Not a fan of whoever decided to implement this seemingly without a way to turn it off.

Asked by Franpa 1 year ago

Answered by TyDraniu 1 year ago

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After using an HDMI cable to connect to a large TV, my tabs, buttons and icons are so large they no longer fit on my screen

Tell me how to reduce the size of buttons, tabs, and everything else BUT the fonts in my browsers. All of them have been affected. I've exhausted all of the normal "look … (read more)

Tell me how to reduce the size of buttons, tabs, and everything else BUT the fonts in my browsers. All of them have been affected. I've exhausted all of the normal "look in Settings and use your brain" options.

Asked by iSocialTiger 1 year ago

Answered by jscher2000 - Support Volunteer 1 year ago

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Enhanced Site Tracking is off but Firefox is deleting sessions between screens

I developed a web app that checks the existing session login for each new page. So, after logging in the first time, the user is shown a dashboard with a list of function… (read more)

I developed a web app that checks the existing session login for each new page. So, after logging in the first time, the user is shown a dashboard with a list of functions they can access (My Account, etc). When an item is clicked and the application calls the function, it first checks for the existence of login session. If it's not there, then the user is forced back to login screen. However Firefox is deleting the session at some point so when the session is checked for the new function, the user is forced to login again. Chrome, Safari, Edge do not and are fine.

Enhanced tracking is turned off for the site and is shown as an exception. What is happening and how can prevent it?

Asked by breadwild 1 year ago

Answered by breadwild 1 year ago

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Specific fields not allowing paste

For the past year or so i have run into certain fields that will not accept a paste, whether by right click or Ctrl-v, and the behavior is consistent every time i try on … (read more)

For the past year or so i have run into certain fields that will not accept a paste, whether by right click or Ctrl-v, and the behavior is consistent every time i try on that specific website. For example, a payment section of our utilities where though i can Ctrl-v my routing number (also it can be filled by what i can describe as a saved autofill - when you click in the field and the entry appears just below), but i can not paste my account number into the account space by either method (right click or Ctrl-v - nor does anything show below the field when one clicks in it).

I have always presumed that this is an intended behavior by whomever coded the webpage for security, but i just plain old find it annoying. Any chance i am correct in that it is a coding option these days, and if so, is there any way to break it?

Thank you!

Asked by bem67 1 year ago

Answered by jscher2000 - Support Volunteer 1 year ago

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DevEd update to 103.0b2 just made everything in the browser HUGE.

Win 10, Developer Edition 103.0b2 This update caused everything to increase in size. Tabs & toolbars are much bigger now. Toolbar and bookmarks toolbar used to fit i… (read more)

Win 10, Developer Edition 103.0b2

This update caused everything to increase in size. Tabs & toolbars are much bigger now. Toolbar and bookmarks toolbar used to fit in the window with no overflow, now both have a lot of items in overflow.

Sites that used to fit at 100% zoom now have to be reduced to 80% or 67% to fit on-screen.

Just wondering what could cause this behavior? Settings?

Note: Browser window is fully maximized and no other program on my Win10 box has this issue.

Asked by EmmEmm013 1 year ago

Answered by jscher2000 - Support Volunteer 1 year ago

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July 26 FF uprade turned my lighted keyboard off. I want it back.

FF upgraded itself and turned off the lighted keyboard on my tower computer. I can still use the keyboard, but it is not backlit and I want that feature back. Windows he… (read more)

FF upgraded itself and turned off the lighted keyboard on my tower computer. I can still use the keyboard, but it is not backlit and I want that feature back. Windows help files are non-existant. I have unpluged the keyboard and reconnected it and I did a cold reboot of the computer-no joy. Disabling the keyboard and trying to reinstall it by plugging it in again might work, but doing that is marked "advanced" by windows, so I am afraid to do it without advice. I am running windows 10 and use a Logitech keyboard. I am not a computer techi, so I need advice in baby-talk. VO1TV>

Asked by tturner125 1 year ago

Answered by jscher2000 - Support Volunteer 1 year ago

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Firefox updated overnight and everything is HUGE

I loved Firefox. Yesterday. Today, I very much dislike it. My nice, neat desktop is not overwhelmed with the tab, url, and bookmark bars now taking up fully one-third of … (read more)

I loved Firefox. Yesterday. Today, I very much dislike it. My nice, neat desktop is not overwhelmed with the tab, url, and bookmark bars now taking up fully one-third of my viewable screen. The pinned tab icons are enormous, and I've spent hours and hours trying all the proposed fixes but none of them work. This is like a cartoon of a browser with gigantic everything since I have to manually change the size of every single web page I visit. The pinned tab icons are so huge they are literally blurry. And, yes, it's as easy as Ctrl + 0, but in my line of work, I browse hundreds of webpages a day, and this is just not acceptable.

Just to be able to see a tiny segment of this page to type this question (i.e. how do I fix this or at least roll it back to the way it was yesterday?), I have to minimize the page to 67% (from the 150% it starts every page at) and the TOWERING tabs and bookmarks and enormous search bar are blocking out the top third of my entire 17" screen, so I can literally only see--again at 67% no 100%--this comment box. And only the part I am writing it, if I wanted to use bold or whatever options are up there, I would have to SCROLL up just to see them. This is just insane. And completely unworkable. I don't have hours to spend fixing every page, scrolling up and down to see a single image or comment box plus editing options. There must be a way to fix this or roll it back to my delightfully compact, unobtrusive tabs, search bar, and bookmarks and make it so every webpage I visit isn't so huge that I have to scroll not just up and down to see what I saw yesterday with ease but from left to right, too! Honestly. This is just dreadful.

Asked by tollyday2 1 year ago

Answered by jscher2000 - Support Volunteer 1 year ago

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Stop messenger from prompting me to download app!

Hello! This is probably one of those intrusive facebook things I won't be able to stop, but when I open messenger in Firefox, it prompts me every! single! time! to downlo… (read more)

Hello! This is probably one of those intrusive facebook things I won't be able to stop, but when I open messenger in Firefox, it prompts me every! single! time! to download messenger for windows, which I very much don't want to do. It does it via a box over my messages that I have to physically click away. I already have pop-up windows disabled for every site. I went to permissions-- notifications but it wouldn't let me add messenger. Is there anything I can do?

Thank you!

Asked by emilyprice7 1 year ago

Answered by user104147805413306348376805769878442569366 1 year ago