Firefox Support Forum

Firefox 121.0 64Bit Windows 10 64bit

Firefox is not displaying pages correctly again. It is not displayed correctly on MSN.de: https://i.postimg.cc/zfFPgGqC/MSN-1.jpg

In the Edge, however, correct: https://i.postimg.cc/5tsTr2Dx/MSN-2.jpg

I am running Firefox 121.0.1, which is currently up to date, on a slightly older MacBook, which has the latest MacOS it can get: macOS 11.6.8. As the title states, YouTube is almost unwatchable on my machine. The video will pause frequently while audio continues, motion is not very smooth, which is especially noticeable watching sports, etc. I cleared cookies and cache, I have run in Troubleshoot mode as well as tried flipping some switches in about:config that I've seen in YouTube videos and forum posts about similar issues, but nothing has solved this issue.

YouTube in Google Chrome works fine, and I've been watching HD YouTube on this laptop with it for years without any issues, so I doubt it has anything to do with machine specs like RAM, CPU, etc.

I was hoping to make Firefox my new browser and start supporting browsers that aren't chromium based since Google Chrome is going too far with respect to privacy and the freedom to use the add-ons I like (e.g. adblockers like ublock origin), but so far I have not been enjoying Firefox for YouTube. Any help would be greatly appreciated.

hey, on websites like tumblr, hyperbeam, and other sites with video embeds or streaming, i keep having problems with the videos stuttering in one place and i usually have to refresh for it to fix. i don't have any extensions that interact with videos other than i guess ublock, and it only happens on sites where i do NOT get ads with videos. here's a gif of the glitch:

https://gyazo.com/c1b29f33e9ef1275e5e76ef95e186af5

it's REALLY annoying, is there any known fix for this? firefox Version 121.0 (64-bit)

One of the websites I use now gives me the following error: Please unblock challenges.cloudflare.com to proceed Microsoft edge does not have this problem, but I don't like using edge. I used my search and found many causes. I did the following: Went to my firefox settings and cleared cookies and history I ran two security programs, bitdefender and maleware bytes I still have the problem.

Firefox won't play YouTube videos. I've tried everything. There seem to be plenty of problems on the forum BUT NO SOLUTIONS!

I'm ready to switch browsers - permanently!

Getting to www.costco.ca impossible during past few days - disabling tracking does nothing! Tried relaxing most security and tracking settings, still no results. MS Edge works just fine, like Firefox used to until now. Guess it's time to switch if no other option.

I Cleared the cookies for this website, and im in private browsing mode, and yet I'm still logged in when I refresh. I also have all cross site cookies blocked I believe (see screenshots), so i'm wondering why is Firefox not logging me out how am I still logged in?

I also tried switching to Strict mode in the firefox settings, still logged in!

See other screenshots: https://imgur.com/a/VSU6o7C

There is a problem logging into Disqus. (disqus.com and disquscdn.com)

This is affecting Linux and Windows installations.

Page I'm having problems at www.lawyersgunsmoneyblog.com

I have used the troubleshooting mode and caches have been cleared and all extension disabled with no luck.

Other browsers are functional. The log in doesn't appear at all:

It's been a while, but I've seen this before. What causes this? Can i prevent it? The blank icons also appear next to the most of the affected addons in about:addons.

I was able to restore normality, at least for the moment, by disabling those addons, re-enabling, then restarting.

I run Firefox 121.0 on Windows 10 Pro. I use a VPN (ExpressVPN) and normally run Ghostery and uBlock Origin. When I log onto Townhall.com and enter my VIP credentials all is fine. However, when I read an article I should be able to access the comments. I cannot in Firefox and this is something that has occurred about 3-4 weeks ago. For years I have not had any problem like this with Firefox.

I tested VIP access with my iPhone - works fine. I tried Vivaldi - works fine. I tried Chrome - works fine. I try Firefox - fails!

I ran Firefox in "TroubleShoot" mode, with all add-ons turned off and it also fails. Even when I run Vivaldi I have Ghostery and ad blocking turned on, but Ghostery does allow townhall.com on their whitelist.

I've send emails to Townhall.com and am not getting any responses. However, I was having the issue with all devices but all have been fixed except with Firefox. So, I have no idea why this is an issue with Firefox but not with any other device.

Any thoughts?

From 8 years of using Firefox and updates, there is a perpetual, never-ending serious bug, occurs on all computers! If one has a lot of open tabs with a lot of RAM, the tabs are also automatically frozen then it is impossible to add bookmarks to all 4760 tabs. So never ever make a bookmark! It takes forever to work, nothing happens, even no extension can, nothing will help. This is some kind of stuck bug. Chrome, it ALWAYS, ALWAYS WORKS WITHOUT PROBLEM! I can add in 1 second in Chrome, but never, ever in Firefox for 8 years!

Is it possible to combine history/bookmark files? Firefox has truncated my "History" to 15 days and the only option I see to get elder entries is to combine a backupped history file with the current one. An easy-to-use tool for this task would be welcome. I did not change my config options after the update to 121.0.1 (64-Bit) (Windows 10pro) but I think I had the total history (from years) before the update. My current Options related to this topic are: browser.history_expire_days false places.history.expiration.max_pages false places.history.expiration.transient_current_max_pages 501234 privacy.clearOnShutdown.history false privacy.history.custom true history (*) Boolean Number String

I already sreened Help files of this Forum concerning lost history data but they all do not give sufficient answers or I do not understand them (as a German user). Thanks. Martin

Hello Mozilla Support,

Since 2 upgrades ago, anytime I try to watch a livestream, my browser slows right down and then crashes.

I don't care why its happening, I just want a definitive fix for the issue.

I'm so aggrieved at this happening constantly, if you cannot provide a firm resolution to this issue, i will simply move to another browser.

I've tried your about:config setting restart to false and other fixes but still keeps happening.

I await your reply.

With Regards,

Mark

There has been this odd banner of scripts on certain web pages for a while now and I'm not sure what it is or how to stop it. I don't know what the problem could be.

Hi.

This message has three sections: little background, little rant, and little help from my friends.

Little background: I use PCs since Commodore 64, and internet since dial-up modems. Apart for some curiosity attempts with other browsers, I always used Firefox. Back then you either could do some DIY or you were done for. So, I am not a noob. And yet I am not a programmer, and do not have to damn be in order to use a damn internet browser. I have no words to express how negatively the choice of changing the behavior of the X button, to make it disappear when a certain amount of tabs are open, affects my user experience with Firefox. I tolerated it version after version. Found mentions of about:config tweaks which never worked. Found mentions to css codes which seemed so complicated that I just gave up (I also don't have much capacity for such things atm). I was ready to get rid of Firefox today after all this time of being loyal. I would have, if it was not for Cor-El. (Cor-El you can put this testimonial on your website if you'll ever start a consulting business).

Little rant: I SO SO SO SO SO SO MUCH HATE bad UX Design! And the FIRST definition of bad UX Design is when a designer imposes their own tastes and preferences on the users, or makes assumptions (based on their own usage) about how users would do things. I don't give the lesser s... if Firefox's UX Designers usually only have few tabs open, or don't mind clicking on a tab to make the damn X button appear, or would gladly abandon their beloved ergonomic mouse to buy a standard one with a mid button just to close tabs, of whatever the f... was going on in their minds when they decided to remove such an ESSENTIAL FEATURE!!! This change is WRONG! Nobody asked for it, nobody wants it, nobody likes it. The X button was not disturbing anybody. WHY must we tweak some f... about:config setting or ask in this Community for some css code to get back what should have never been removed!!!??? DO YOUR JOB, which is to make OUR user experience better, OUR, not yours!!!

Little help from my friends: After quick searches over a long time where I couldn't dedicate more resources to this, I came here determined to dig deep to find a solution. And I've found a few posts with answers from Cor-El. I followed his instructions in THIS post to configure a css file with the code that he provided in THIS other post (because I thought I didn't want the delay offered by the code he provided in the former post). Problem solved.

Now a question for Cor-El: Is it just me or the solution with the two browser.tabs settings does not work? It's the first thing I tried. I went from 50/50 to 200/200 to see if size matters. But no chance. Maybe there is another setting that must be activated for these to have effect? Or was their effect on the X button removed in newer Firefox versions (like the UX Destroyers really hate us)? Btw, I wanted to see how the delay thing would work, so I tried the code you gave in the first post, and it didn't have any effect. Whereas the code you modified for a guy in THIS post works perfectly. What could be the reason?

And 2 requests: - can you make some guide or pinned post about this, where you put together the info you gave in different posts? Something with your super easy instructions how to create a css file, and the two codes (with and without delay). And if the browser.tabs solution can still work, that too. All info in one single place, easy to find. - can you point me to a (possibly ADHS friendly) resource to more css codes for other useful tweaks, and to an explanation of what all about:config settings do? I like to tweak things to my needs. But I get overwhelmed if I have to read through tons of material. Thanks :)

Bonus Material, Little Rant part 2: It's good and nice that people help each other and I am thankful, but it does not need to come to this. Sure, I've read that the (ridiculous) reason behind the choice of making the X button disappear was to avoid accidental closure of tabs. But WHY taking for granted that we are some !diots who can't even use a mouse properly? And even if it happens once, we can still go to the damn "recently closed tabs"! But no, they had to remove the X button for all of us, to prevent a bunch of !%#@! from maybe sometime accidentally closing a tab. Why not just adding an option in the settings (NOT in some hidden "about:config") to let us choose if we want to have the damn button or not? Btw, a lot of these about:config tweaks are really useful and not dangerous at all and should imo be included in the normal settings. Keeping things simple and tidy does NOT mean reducing options. Unless you're Apple.

Please God-zilla let these [censored content] UX Designers read this post.

Amen and happy new Xear.

Firefox is blocking/preventing me from visiting a website even though it is secure but Firefox does not recognize the certificate issuer. How do I get around this? Thank you.

I have used Web2forms for my contact form on my Staic Website. Works perfectly with other browsers. However, Firefox does not render the hCaptcha atall.

This is the relevany html

   <script src="https://web3forms.com/client/script.js" async defer></script>

I view a lot of pdf documents via firefox, the light gray background makes my eyes and head hurt after prolonged usage. In the past I found a solution on this forum that advised to set pdfjs.viewerCssTheme to "2" in about:config. This set the background of pdf viewer to black/dark gray. This has worked for years until recently when the pdf viewer switched to light mode again (pic 1). I checked the about:config settings for pdfjs.viewerCssTheme but there appears to be no change. I tried restarting the browser, setting the theme to 0 and to 2 again, updating browser. Sadly the theme is still light gray. Is there a way to change it again? The desired outcome is in pic 2. I do NOT want to change the color of the pdf pages themselves.

I encounter this error only on my.nintendo.com. However nobody else I know encounters this (even using Firefox) and I do not encounter it on Edge browser.

When I open the site it stays for a few seconds, then loads an error page. Then this error page reloads itself every few seconds. I tried to include some Inspect tool details. Before a 404 error there are 303 and 302 responses. I live near my friends who do not have this issue (same ISP too) so it's not a regional issue. In the screenshots the four (and two more further down) red GETs below are all "304 Not Modified" status'd

I'm not sure what type of info I can dump from the browser or how, to help diagnose this. I'm on Windows 11 (though I was having this isue on my dual-booted Linux install too), on version 121.0.1 (see screenshot of About Firefox for more?)

Thank you for your time reading my post, please help me report this with more details.