Firefox Community Forum

I'd like to add Firefox to Adobe Dreamweaver for site design viewing. When searching Windows for Firefox.exe I don't see it in Program Files or Program Files (x86). Firefox is installed and used daily. Can someone tell me where it's located in Windows 10?

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.

Hi, I just installed Windows 11, version 24H2 and now in Firefox I'm continually prompted with "Awaiting Location Permission, Grant Firefox location permission in system settings".

The problem that location has been turned off by admin on this computer. How can I stop these continual prompts from Firefox? I have checked the box in Settings to block location requests from new websites but am still getting the prompts.

Thank you.

Up until Firefox 116, Reopen Closed Tab (Ctrl+Shift+T) would reopen closed tabs, and Reopen Closed Window (Ctrl+Shift+N) would reopen closed windows. There was a clear bifurcation, so I could freely close windows and not worry about it polluting my tab history in another window.

The latest change has thrown out that advantage, and now Reopen Closed Tab reopens both tabs and windows, while Reopen Closed Window still just reopens windows. This makes the later essentially useless and the former much more difficult to use for me.

I assume this was done to just continue copying Chrome in all respects since that's how it handles it, but the changelog just vaguely states, "This change is in anticipation of upcoming changes to recently closed tabs."

Does anyone know if there's a setting to separate the two functions again?

When I'm in full screen mode, The Apple, "Firefox" "File" "Edit" "View" "History" "Bookmarks" "Tools" etc menu bar shows up at the top and won't disappear. On my iMac Pro, it doesn't show up. i.e. Off.

I can't figure out what is the setting to make sure it does not appear. I went digging everywhere and can't figure it out. If you could tell me what config, etc I'm missing I'd appreciate it.

Screen shot attached to show which menu bar I mean.

My firefox is up to date: 126.0 (64-bit)

A recent set of system updates appears to have made most website videos not play in Firefox.

When I inspect the Developer Tools - > Console tab the most detail Firefox gives are an error line similar to: Media resource URL could not be decoded, error: Error Code: NS_ERROR_DOM_MEDIA_METADATA_ERR (0x806e0006)

Internet searches for the error name and error hex do not appear yield any applicable troubleshooting, nor any methods of collecting additional problem data.

How can I obtain more detail on where the error is happening and how Firefox might be interacting with other packages present on my system?

Arch Linux has some older ffmpeg-compat packages, but those don't appear to match any of the web results, in that they're even older versions of ffmpeg.

yay -Ss ffmpeg-compat aur/ffmpeg-compat-55 2.3.6-4 (+24 0.00)

   Compatibility package for ffmpeg to provide versions 55 of libavcodec, libavdevice and libavformat, not anymore provided by the ffmpeg package

aur/ffmpeg-compat-54 1.2.12-4 (+87 0.00)

   Compatibility package for ffmpeg to provide versions 54 of libavcodec, libavdevice and libavformat, not anymore provided by the ffmpeg package

Hi, I've upgraded to Windows 11 today and couldn't open Firefox since. Things I've already tried:

• Reinstall Firefox and delete all old files (Appdata & Program files)
• sfc /scannow and DISM.exe /Online /Cleanup-image /Restorehealth
• Windows compatibilty mode
• Firefox Troubleshoot mode won't open either
• ipconfig /release & /flushdns & /renew
• netsh int ip reset & netsh winsock reset

When opening Firefox in any way, i get a white window/just the window border which immediatly closes. When trying to start troubleshoot mode, the small window has the same issue.

I also checked the crashlogs and none were generated. The Windows event-logger also has no entries.

BTW: Here is a video of whats happening: https://youtu.be/AJP4rqZFxlY

I have no idea what to do - send help please.

I've just switched to firefox from brave, and theres no button on twitch to enable picture in picture. Using the keyboard shortcut (cmd+option+shift+]) works, but I'd much rather click something on the screen. On brave there used to be a picture in picture button alongside settings, theatre mode, and fullscreen buttons, but on firefox this has been replaced by a clip button. There's no option for it if I right click (this works on youtube), and no option in the address bar for either twitch or youtube. I've tried disabling all my extensions and lowering protections but nothing seems to work.

Yesterday I had Picture-In-Picture (shortened into pip for next mentions) working on youtube, then after one day, PIP no longer works on any of the websites, including youtube. I tried disabling and enabling pip, entering troubleshoot mode, and none of them worked. Not reinstalling because it will be annoying to log in everywhere I've had account at.

Any solution?

My YouTube homepage is blank when I visit using Firefox (see attached screenshot). Here is a list of all of the fixes I have tried:

-Disabling all extensions and turning off Enhanced Tracking Protection (at the same time) -Clearing cache -Clicking 'forget this site' on YouTube in my browser history -Restarting my PC/Firefox -Refreshing Firefox profile (this worked, but the issue returned after an hour) -Changing my system theme to light mode -Launching Firefox in troubleshoot mode -Logging in on an incognito window (with the same result) -Probably some other things I'm missing (I tried pretty much every result I could find from looking up 'YouTube homepage is blank' and 'YouTube homepage not loading).

The issue only occurs on Firefox and only after I log in to YouTube. This has never occurred before. I checked to make sure my Firefox and YouTube settings are the same as they've always been.

YouTube videos load fine as long as I paste the direct link into the URL bar, but ONLY the video (no comments, recommended videos, likes/dislikes, description, etc...) and I can't take it out of theatre mode nor fullscreen it (fullscreening it just removes the top bar of the browser--the video itself still has black bars on the sides).

Sometimes when I reload the page, I see the following at the end of the URL: &ThemeRefresh=1. I don't know if that means anything.

I am using the Firefox app on Windows 11. I am not using a VPN. This issue is specific to YouTube and YouTube only.

Any help would be greatly appreciated. Thanks!

Hello, everyone.

4-5 days ago, I've noticed weird YouTube playlist behavior. When I start playlist and switch to a different tab (or minimize browser) first video will play normally and it will autoplay the next one. But after finishing playing 2d video (3d in some cases) video will just stop at the end of playbar and not autoplay the next one in playlist. Playlist for example: https://www.youtube.com/watch?v=giUY_pEKTzY&list=OLAK5uy_nKmglmCCbx14WeFyH8e7YGYcL5skYwnp0&index=1

It's rather easy to replicate, I can record desktop video if needed.

Expected behavior: I can start YouTube playlist playing and switch to a different tab or minimize browser and playlist will only stop after playing last video in said playlist (unless "Loop playlist" option is enabled).

What I've tried to do so far: 1) Googling: I only was able to find old thread and the culprit was extension: https://support.mozilla.org/en-US/questions/952608 2) Disabling Extensions and confirming issue in Troubleshoot Mode: Did not help 3) Clear cache & cookies for YouTube: Did not help 4) "Allow Audio and Video" autoplay for YouTube: Did not help 5) Confirming issue in another browser: Works as intended in Opera 6) Checking about:config: I'm not that savvy with Firefox config to understand what may cause an issue. Tried to change media.block-autoplay-until-in-foreground to False. Did not help, rolled it back to True.

What I have noticed: 1) Firefox recent update: 118.0.2 October 10, 2023: Correlates when I started experiencing this issue. 2) YouTube playlists plays next video continuously just fine if I don't minimize browser or switch to a different tab. 3) There is a Firefox extension that does exactly what I don't want in my experience: https://addons.mozilla.org/en-US/firefox/addon/no-playlist-autoplay-for-yt/ I installed it just to check. And yes, it does what expected and it is similar to what I'm experiencing. Although it stops playlist after finishing first video, my issues go into the affect after playing first video. (Deleted it after testing)

Before posting I've tried a few different things and here where things gets extremely weird: 1) It works just fine in Firefox if I log out from my YouTube account: (Incognito/Main tab) Do not work if I'm logged in, even in Incognito. However... 2) It works just fine in Opera if I'm logged in my YouTube account. 3) It works just fine if I open playlist in mini-player. (Current workaround)

After all that weirdness I attempted to Clear cache & cookies for YouTube and it did not help once again.

P.S. Yes, I use YouTube as a music player. :)

⁨Mozilla⁩ logoOpens in new window Mozilla Accounts Terms of Service

Last Updated November 1, 2023 {: datetime="2023-11-01" } Summary

This top section summarizes the terms below. This summary is provided to help your understanding of the terms, but be sure to read the entire document, because when you agree to it, you are indicating you accept all of the terms, not just this summary.

   Mozilla accounts (the "Services") include your account and the suite of services provided to you by Mozilla using that account.
   The Services are provided "as is" and there are no warranties of any kind. There are significant limits on Mozilla's liability for any damages arising from your use of the Services.

Terms of Service

   Introduction

   These Terms of Service ("Terms") govern your use of Mozilla accounts, a suite of online services provided by Mozilla (the "Services").
   Mozilla Accounts

   In order to use some of the Services, you'll need to create a Mozilla account. During registration, you will be asked to set a password. You are responsible for keeping your password confidential and for the activity that happens through your Mozilla account. Mozilla is not responsible for any losses arising out of unauthorized use of your Mozilla account.
   Services

   (a) Mozilla VPN is a Virtual Private Network in partnership with MullvadOpens in new window. A Mozilla account is required.

   (b) Firefox Relay allows you to keep your primary email address safe and private from online services by making unique, alias email addresses that allow you to send and receive emails without revealing your primary email address. A Mozilla account is required.

   (c) Firefox Monitor is an informational service to promote online security by informing you of public data breaches. You can scan email addresses on our website to see most publicly known breaches. If you subscribe with a Mozilla account, you will receive:
       Full Report: This includes a complete list of publicly known hacks, including breaches of sensitive websites, such as those for children or adult and dating sites (these sites are excluded from website scans in order to protect the privacy of those individuals).
       Breach Alerts: This notifies you if your email address appears in a new data breach.
       Safety Tips: This sends you occasional online safety tips from Mozilla.

   It is your responsibility to protect your online accounts using strong and different passwords, security questions, two-factor authentication, password managers, and other safety measures. Although Firefox Monitor and Have I Been Pwned?Opens in new window strive to have current data, there is no guarantee that either will have complete or timely records of all public data breaches.

   (d) Firefox Notes lets you take notes in Firefox. A Mozilla account is required to view, edit, and delete your Notes across devices.

   (e) Firefox sync lets you access information stored in Firefox across devices, including your tabs, awesome bar, passwords, bookmarks, and browser preferences. You can enable and disable Firefox sync through the Settings section of Firefox. A Mozilla account is required.

   (f) Pocket helps you discover great content that’s personalized to your interests and save this content so you can return to it later – on any device, at any time.
   Privacy Policy

   We use the information we receive through the Services as described in our Mozilla Privacy PolicyOpens in new window. Our Privacy Notices describe in more detail the data we receive from each service:
       Firefox MonitorOpens in new window
       Firefox NotesOpens in new window
       Firefox syncOpens in new window
       Firefox RelayOpens in new window
       Mozilla VPNOpens in new window
       PocketOpens in new window
       MDN PlusOpens in new window
   Communications

   We send periodic messages to help you get the most from your Mozilla account. You may receive these in-product or to the address you signed-up with; they cover onboarding, different Mozilla account services, and related offers and surveys. You may also choose to receive other types of email messages.

   You can change your email subscriptions with Mozilla from our emails (click the link at the bottom) or from the browser (visit Firefox / Preferences / Sync / Manage account / Email Preferences).

   We may also send you important account information such as updates to legal or privacy terms, or security messages like password resets, email verification, and linked devices. These are necessary to our services and cannot be unsubscribed from. You can contact Mozilla at Mozilla Corporation Attn: Mozilla – Legal Notices 149 New Montgomery St, 4th Floor, San Francisco, CA 94105 or legal-notices@mozilla.com
   Your Content in Our Services

   You may upload content to Mozilla as part of the features of the Services. By uploading content, you hereby grant us a nonexclusive, royalty-free, worldwide license to use your content to provide the Services. You hereby represent and warrant that your content will not infringe the rights of any third party and will comply with any content guidelines presented by Mozilla. See here to report claims of copyright or trademark infringementOpens in new window.
   Mozilla's Proprietary Rights

   Mozilla does not grant you any intellectual property rights in the Services that are not specifically stated in these Terms. For example, these Terms do not provide the right to use any of Mozilla's copyrights, trade names, trademarks, service marks, logos, domain names, or other distinctive brand features.
   Term; Termination

   These Terms will continue to apply until ended by either you or Mozilla. You can choose to end them at any time for any reason by deleting your Mozilla account, discontinuing your use of the Services, and if applicable, unsubscribing from our emails.

   We may suspend or terminate your access to the Services at any time for any reason, including, but not limited to, if we reasonably believe: (i) you have violated these Terms, (ii) you create risk or possible legal exposure for us; or (iii) our provision of the Services to you is no longer commercially viable. We will make reasonable efforts to notify you by the email address associated with your Mozilla account or the next time you attempt to access the Services.

   In all such cases, these Terms shall terminate, including, without limitation, your license to use the Services, except that the following sections shall continue to apply: Indemnification, Disclaimer; Limitation of Liability, Miscellaneous.
   Indemnification

   You agree to defend, indemnify and hold harmless Mozilla, its contractors, contributors, licensors, and partners, and their respective directors, officers, employees and agents ("Indemnified Parties") from and against any and all third party claims and expenses, including attorneys' fees, arising out of or related to your use of the Services (including, but not limited to, from any content uploaded by you).
   Disclaimer; Limitation of Liability

   THE SERVICES ARE PROVIDED "AS IS" WITH ALL FAULTS. TO THE EXTENT PERMITTED BY LAW, MOZILLA AND THE INDEMNIFIED PARTIES HEREBY DISCLAIM ALL WARRANTIES, WHETHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION WARRANTIES THAT THE SERVICES ARE FREE OF DEFECTS, MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, AND NON-INFRINGING. YOU BEAR THE ENTIRE RISK AS TO SELECTING THE SERVICES FOR YOUR PURPOSES AND AS TO THE QUALITY AND PERFORMANCE OF THE SERVICES, INCLUDING WITHOUT LIMITATION THE RISK THAT YOUR CONTENT IS DELETED OR CORRUPTED OR THAT SOMEONE ELSE ACCESSES YOUR ONLINE ACCOUNTS. THIS LIMITATION WILL APPLY NOTWITHSTANDING THE FAILURE OF ESSENTIAL PURPOSE OF ANY REMEDY. SOME JURISDICTIONS DO NOT ALLOW THE EXCLUSION OR LIMITATION OF IMPLIED WARRANTIES, SO THIS DISCLAIMER MAY NOT APPLY TO YOU.

   EXCEPT AS REQUIRED BY LAW, MOZILLA AND THE INDEMNIFIED PARTIES WILL NOT BE LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL, CONSEQUENTIAL, OR EXEMPLARY DAMAGES ARISING OUT OF OR IN ANY WAY RELATING TO THESE TERMS OR THE USE OF OR INABILITY TO USE THE SERVICES, INCLUDING WITHOUT LIMITATION DIRECT AND INDIRECT DAMAGES FOR LOSS OF GOODWILL, WORK STOPPAGE, LOST PROFITS, LOSS OF DATA, AND COMPUTER FAILURE OR MALFUNCTION, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES AND REGARDLESS OF THE THEORY (CONTRACT, TORT, OR OTHERWISE) UPON WHICH SUCH CLAIM IS BASED. THE COLLECTIVE LIABILITY OF MOZILLA AND THE INDEMNIFIED PARTIES UNDER THIS AGREEMENT WILL NOT EXCEED $500 (FIVE HUNDRED DOLLARS). SOME JURISDICTIONS DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL, CONSEQUENTIAL, OR SPECIAL DAMAGES, SO THIS EXCLUSION AND LIMITATION MAY NOT APPLY TO YOU.
   Modifications to these Terms

   Mozilla may update these Terms from time to time to address a new Service, feature of the Services, or to clarify a provision. The updated Terms will be posted online. If the changes are substantive, we will announce the update through Mozilla's usual channels for such announcements such as blog posts and forums. Your continued use of the Services after the effective date of such changes constitutes your acceptance of such changes. To make your review more convenient, we will post an effective date at the top of this page.
   Miscellaneous

   These Terms are governed by the laws of the state of California, U.S.A., excluding its conflict of law provisions. If any portion of these Terms is held to be invalid or unenforceable, the remaining portions will remain in full force and effect. In the event of a conflict between a translated version of these terms and the English language version, the English language version shall control.

Automatically hide taskbar in desktop mode => Enabled Firefox => Maximised When cursor is moved to outer edge of screen, taskbar should unhide (Expected behaviour) but in this case it remain hidden (Reality). Firefox along with all other spinoffs give same result. Chromium based browser works perfect, and taskbar automatically unhide itself.

As OLED screen have became common as monitor, Taskbar auto-hide is must. If this issue cann't be fixed I may have to change my primary browser which I used for almost 15 years.

Kindly, look into it. If Chromium can do it, why not Firefox.

Today for the first time after the latest update 127.0 (64-bit), my many firefox pages and tabs crashed and closed and a pop up to send crash report.

So I have fired up firefox again to find only a single page opens up, I have lost probably 16+ pages with multiple tabs on each, been like that for months, I have 32GB memory so there is normally no issues or slowness. However after the crash, even though only a single firefox page is open, windows task manager shows Firefox (20) and if I expand the task, I can see each firefox is taking lots of memory.

So it looks like the old session pages/tabs are still there somewhere but not accessible, I would like to get them back if possible. I went through reseting it to default, disabling the add ons etc but nothing has worked.

I always set Firefox to open the previous sessions tabs when starting. For some reason during the start up over the past several days Firefox opens to the home page only. I then have to search the history to find the closed tabs. Except for this problem, Firefox is working perfectly.

Does anyone have any suggestions as to why this is going wrong and a possible way to fix it?

The bookmarks icons and fonts are too small for my older eyes on my new Ubuntu computer. They are bigger on my older Ubuntu computer. I have tried to find out how to enlarge them without sussex.

I am aware of the Zoom feature for a webpage itself, I am not asking about that. I simply want to have my bookmark toolbar FONTS and ICONS larger.

This has been frustrating. Perhaps including an EASY way to do this for future updates, or an app suggestion that would solve the problem. Thanks for your consideration and (hopefully) help.

Hi, not sure what I'm doing wrong, but my logins and passwords simply will not synch between devices. I principally use a desktop Win10 machine, and an iOS version of Firefox. Have double-checked settings on both devices, tried forcing a manual sync from each to the other, all to no avail. Any ideas on what I need to do differently? TIA.

Hello,

I dislike the Group Tabs feature. So many times I've accidentally created a Group Tab and then had to figure out how to un-group them.

I've tried to change the value of the "browser.tabs.groups.enabled" preference to false, but it doesn't stick; after restarting, the value is always back to "true".

What’s up with this?

Thanks, Andre’a

From the subject line - I keep getting this error when trying to use Firefox Sync on my Windows 10 desktop. Sync already works on Mac and Android, and I've already verified that I'm using my primary email to login.