Diễn đàn hỗ trợ Firefox

Hello! When I try to log into my Microsoft 365 Outlooks, I get the following message:

'Your browser is a bit unusual...

Try disabling ad blockers and other extensions, enabling javascript, using a different web browser or turning off your VPN.'

I did go in and turn off the ad blocker. I do not have a VPN, and I could not find anything about Javascript on the Preferences page.

Please let me know what to do so I can log into my email.

Thank you! Christine

In a simple HTML file containing an Arabic / Urdu / Persian phrase: "با نشئہ درویشی در ساز و دمادم زن", Firefox in Linux (Ubuntu, to be more precise) uses the default font (DejaVu Sans) for the whole phrase except for one character (UNICODE: 6C1). Font used for this character is Noto Sans Arabic UI. So the text looks broken due to different fonts.

Please have a look at the attached screenshots for better understanding.

I've tried to search but could not find how exactly Firefox resolves preferences in Font Settings and CSS "font-family" preference to local fonts in Linux. Does this have to do something with "fontconfig"?

How can I make Firefox use only the default font for the whole phrase?

Hello, I have a situation I cannot explain. Firefox has created over 47,000 bookmarks to the same location. This happens in multiple folders. One is just google. Another is a website I use for work. I delete them and they keep coming back.

I have sync turned off.

Any other ideas?

tried searching for this but unfortunately i didn't find any relevant posts

trying to set the sidebar width using the 'userChrome.css' file

the css file path is;

C:\Users\username\AppData\Roaming\Mozilla\Firefox\Profiles\bjf0cg2g.default-release\chrome\

userChrome.css

the css is;

1. sidebar { min-width:34px !important; max-width:34x !important; }

appreciate any feedback because there seems to be an issue with the above

I have problem with some websites, Firefox would flash white screen when I click between menu pages

1. https://www.microsoft.com/en-us/microsoft-365/onedrive/online-cloud-storage

Top menu bar, clicking back and forth with those menu links

1. https://www.ghacks.net/

Top menu bar, clicking back and forth with those menu links

1. https://mpv.io/manual/

Those 2 HTML links, click and press back then repeat

1. https://vndb.org/

NSFW, side menu, clicking back and forth with those menu links Footage, compare between Edge and Firefox:

1. Flash white, so maybe epilepsy warning
2. One of the sites is NSFW, but by default they're all hidden, some text may say "18+", etc, but no NSFW images were shown in the footage

https://1drv.ms/u/s!AmwlKvqIgGxK_Anfz5d4pnjOdLns This could be just Firefox default behavior, but it's a bit frustrating, I hope someone can help me with this.

Hi I'm having problems sending emails, with a constant message, as per the example posted here: SMTP error from remote server for RCPT TO command, host: devon-gov-uk.mail.protection.outlook.com (104.47.11.74) reason: 550 5.4.1 Recipient address rejected: Access denied. AS(201806281) [DB5EUR

What is it about YouTubeTV in Firefox that breaks my ability to control playback? I can click with mouse, but shortcuts ("Play (k)", "Back 15 seconds (j)", or "Forward 15 seconds (l)") stop working repeatedly and I'm forced to go back to using my mouse (Wacom Intuos Pro M). This doesn't sound like a big deal until you're forced to watch an offensive "My Pillow" ad or worse, and I can't immediately stop the playback of these radicalized terrorists. Or if while watching a DVR recording, it stops allowing me to skip thru commercials, or pause playback without picking up my pen (mouse) to get back in control of the 'playback' features.

Strangely, this never happens on YouTube videos/content. Those same controls ('shortcuts') work fine there.

Hi,

Firefox reports an incorrect timezone (UTC), despite `privacy.resistFingerprinting` being false. (None of the settings underneath `privacy` have been changed.

The clearest example is here: https://browserspy.dk/date.php (screenshot attached). Another browser (epiphany) reports the correct timezone on that page.

I have tested the following versions: - Mozilla Firefox 102.11.0esr - Mozilla Firefox 113.0 - Mozilla Firefox 113.0b9

It persists under `--safe-mode`, in Private Browsing mode and despite being signed into a firefox account or not.

uname -a: Linux s 6.3.4 #1-NixOS SMP PREEMPT_DYNAMIC Wed May 24 16:30:25 UTC 2023 x86_64 GNU/Linux

timedatectl, displays correct timezone

I'm at a loss at how to proceed and debug this, every search leads back to privacy.resistFingerprinting, but as mentioned this isn't the case here.

I go to youtube, open a video and the audio plays just fine, except there is no visual. The video says its playing and I can hear it normally but I can't see anything. Subtitles show up, but the place where the video is supposed to be is just blank, the same as the background of the page. Weirdly if I click the settings button on youtube, the one next to the sign in or account button, the video will display as long as that menu is up. If I close the menu the video goes away.

I have refreshed firefox, deleted and reinstalled firefox, removed all my extensions, turned hardware acceleration off (and then back on when it didn't work) as was recommended in a similar post a few years ago, and restarted my computer. Youtube still won't show me a video. It works fine on chrome, just not firefox.

I uploaded a screenshot of an ad, which doesn't play but shows the outline of the video player, a screenshot of a normal video where the area the video should be in is just more indistinct background, a screenshot of the video appearing normally when I have the settings menu open, and a screenshot of the captions loading properly over an empty void.

Edit: I installed the Enhancer for Youtube extension? Which I haven't ever installed beofre? And now Youtube works? Why

I have firefox version 113.0.1 on two computers both running windows 10 Pro. the last update failed on both computers and firefox would not run so I reinstalled version 113.0.1 Any suggestions?

Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz 2.40 GHz 8.00 GB RAM

Intel(R) Core(TM) i5-4590 CPU @ 3.30GHz 3.30 GHz 16.0 GB RAM

As the subject says, certificate exceptions added "permanently" in the Certificate Manager are dumped at various intervals. For example after updating to 113.02, my certificates for a local router and switch were gone. Sometimes the certificate exceptions seem to be removed at random intervals. Can't really nail down what causes this but the "permanent exception" is not honored. I added several certificates a few days ago, now they're gone.

This has been an ongoing PITA for the past year or more. Why does Firefox make this so difficult?

The Samsung page with the products registration: https://www.samsung.com/us/support/account/products/

does not display any products on Firefox and keeps refreshing itself about every 10 seconds or so.

It works perfectly in Chrome on the same computer and then displays the individual Samsung products I've purchased and registered with Samsung.

Hi, I experience consistent tab crashes in my Firefox app on the computer since yesterday. It works only in troubleshoot mode and not in normal. I tried refreshing and reinstalling the app, installing Firefox for Web and nothing worked. Cleaning data and turning "false" preference media.wmf.vp9.enabled didn't work either. I also tried deleting all extensions, turning off recommended performance mode (using hardware) and enabling default theme. I haven't installed anything recently. Last Windows quality update 24.05.2023, last feature update 08.03.2023. Firefox app still works perfectly on my phone, so it's probably something with the computer. What can be the cause and what can I do to fix it? Added info about crashes below

Thanks

Hi, Firstly, I'm fairly new to this - so apologies if I don't describe this very well, or leave out any obvious info....

We use PKI certs generated by a third party - and I'm in the process of installing the Vsphere v7 certificate. We've got a process which I've followed once before and been fine. But this time, after I install the certificate, Firefox gives me a "SEC_ERROR_CERT_NOT_IN_NAME_SPACE" error. The only other Browser we have on our system is IE. When I entered the url of the Vsphere server, in IE - it did give me the Vsphere login screen OK. When I clicked on the padlock in the address bar, the new certificate was there, complete with its chain (Root CA and intermediate) and the dates were as expected. So it look like the PKI cert install has worked. However, I need it to work in Firefox. I'm a bit out of ideas. I did find this post:

https://security.stackexchange.com/questions/188914/certifying-authority-for-this-certificate-is-not-permitted-to-issue-a-certificat

But when I checked the Permitted name constraints of our intermediate CA, the expected domain was in there, so I assumed that wasn't the issue (if I've understood this correctly). Any thoughts would be much appreciated. Thanks.

Not secure website home accessible, but none of the pages under it. Unable to mark pages for not secure browsing. I marked the home site for not secure browsing OK. But no pages under it will open. There does not seem to be a way to tell the browser to ignore the security requirement for all pages in this website.

Hi there I love FireFox, after years of others recommending, I finally switched and really appreciate so many great features (automatic downloads not at all though). Anyways, I have a Tivo with in house and out of house streaming to Watch Tivo web app and Tivo android app. Until recently, was able to stream anything from Tivo Box throughout house. Android app works awesome, but no longer working on FireFox (or Edge & Chrome) Research shows this is due to a change in website security which is maybe similar to FF issue?

Chrome offered advance warning/remedy..as detailed below....

I am hoping FF team can rise to the challenge and get tivo online working again for the millions of us who still use and love our Tivos.  Or maybe another Tivo fan has a workaround they can share? I sure hope so, I have wasted hours already troubleshooting and hair pulling :(     Any and all assistance appreciated

Access to XMLHttpRequest at 'http://(MYIP):49152/sysinfo/json/svcinfo' from origin 'http://online.tivo.com' has been blocked by CORS policy: The request client is not a secure context and the resource is in more-private address space `private`.

After researching that i found this link Chrome CORS error on request to localhost dev server from remote site

it went into a bit about how "Chrome has implemented CORS-RFC1918, which prevents public network resources from requesting private-network resources - unless the public-network resource is secure (HTTPS) and the private-network resource provides appropriate (yet-undefined) CORS headers."

So basically a public network "online.tivo.com" cannot access my local network (where my tivo is) due to this new CORS-RFC1918 standard.

The is a fix to disable this behavior for now chrome://flags/#block-insecure-private-network-requests

In windows 10 I have disabled ClearType antialiasing. Because of this, Firefox does not make antialiasing of some fonts: Firefox-Google Firefox-Wiki

On the same system, Chrome browser does antialiasing (grayscale): Chrome-google Chrome-wiki

How to force the Firefox to use antialiasing the same way as Chrome?

Firefox is 113.0.2

Hello, I have somehow replaced by bookmarks with empty bookmarks, and I don't have the previous version in backups on my local machine.

Could you help me?