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I have changed Firefox's settings to both Delete cookies and site data when Firefox is closed and to Clear history when Firefox is closes. But after making these changes Firefox is still holding onto my browsing history.

When I try to play a video on Firefox desktop, it takes it a long time to load. Once it has loaded, whenever I pause it for more than a few seconds, or if I try to skip around the video (either by clicking around in the loaded section of the progress bar or using +/- seconds buttons), the video begins buffering again before the video resumes. This makes it extremely difficult and frustrating to watch anything that requires me to pause, rewind, or fast forward. I've noticed this issue affect multiple video viewing sites, such as YouTube, Vimeo, and Netflix. My roommate also uses Firefox, but doesn't have this issue, so I know it's not a problem with my internet. I thought it might be a problem with my computer, but I tried to replicate the issue in Chrome and everything worked fine there. The issue has persisted almost a week. I have:

• Rebooted my computer several times
• Deleted my history/cache
• Disabled my extensions
• Turned off Java scripts in firefox (this disabled my ability to load sites like YouTube completely, so I turned it back on)
• Updated my computer
• Updated my graphics drivers
• Refreshed firefox
• Uninstalled and reinstalled firefox (and rebooted my computer)
• Uninstalled and reinstalled firefox AND deleted all the data it stored on my computer (and rebooted my computer)

I am currently using version 123.0.1 of Firefox. My OS is Windows 10 22H2.

Prior to update 125.0.1 corporate intranet users could download PDF files from our Line of Business applications / Webpages. Today after the latest update the PDF files download but are corrupted. The site was added to the trusted webpage without improvement.

Adobe Acrobat Reader could not open ********.pdf because it is either not a supported file or because the file has been damaged

When switched to mobile hot spot from wifi [and viceversa] Firefox can't load websites but other browsers can. I am facing this issue recently like from a month or so. Before that all working fine. I have already tried the troubleshooting steps from here https://support.mozilla.org/en-US/kb/firefox-cant-load-websites-other-browsers-can, Still no luck! Edition Windows 11 Home Single Language Version 22H2 OS build 22621.2506

Note:Whenever i switch to mobile hot spot i have to restart laptop to make Firefox work.

Is there any permanent solution for this problem?

YouTube all of a sudden started to slow down and only be able to load videos fast enough in 360p resolution, I tried watching YouTube on Microsoft edge and YouTube handled 1080p easily there, I have cleared the cash and made sure my Firefox and Windows are up to date and still the issue persists.

this only seams to occur on YouTube as amazon prime and speed test works without issues

The last couple of days emails from one particular adress (mail send from or generated in our membershipsystem) have started to disapear from my inbox.

I'm not aware that any updates have been done since when it worked.

The mail shows in the inbox for maybe 5-10 sec and then puff without me doing anything or if I click away from inbox and back it's gone

I have checked my spam, the trash and my filters and I have done a search. Even ended up deleting my filters, to be sure.

I have made sure the email adress is not on any spam list. I even tried to make a filter where it would copy the mail to another folder to see if it would stay there (it didn't get copied).

The mail is also gone when I check directly on the webmail with my mail provider.

On my thunderbird I have three different email accounts from the same email provider. I tried sending the same mail to two of my accounts at the same time form this particular emailadress (I can acces the membershipsystem and send / generate mails from there). The mail was recieved and stayed on one account but not the other.

I'm running out of things to try - please help me.

I've read all the suggestions but can't get Firefox Sync to transfer the open tabs from my old PC to my new one. I'm signed in on both to the same account, both are on my LAN with a wired ethernet connection, and I've checked every box in the "what to sync" field. When I click "Sync Now" the icon spins for a few seconds like it's doing something but the tabs from the old machine do not appear on the new one as I expected them to. Nor can I get them by closing and doing a Restore Session.

This seems pretty straightforward and how most users would expect it to work - am I missing something? If not, why isn't it working?

Ubuntu 18.04.6 LTS and Thunderbird 102.11.0 (64bit) Archives in TB show 2021 and 2024 only but both are empty Archives.sbd contains 4 files: 1) 2021 (empty), 2) 2021.msf, 3) 2024 (apparently all missing emails are dumped here, but not in clear readable format) and 4) 2024.msf I did not intentionally archive the files; could be by accident clicking "A" but unlikely that I accidentally also had selected app. 3,000 emails. App. 60 mails were left (i.e. not archived) in inbox Tried to archive one file afterwards from inbox. OK, went correct to 2024 in the same folder as all the others. However, this mail was visible in Archives, 2024 in TB. I moved it back to inbox without any problem but strangely it still also is in Archives.sbd, 2024! HOW CAN I GET THE EMAILS (app. 3,000) FROM Archives.sbd, 2024 BACK TO TB?

Hello,

In the past, FF downloaded documents without opening them in the browser. This is two weeks now that whenever I download a document, FF is now opening the document in the browser without asking me.

I welcome if someone could tell me what I can do to stop FF from opening the documents.

Thanks for any help you can offer me.

The last couple of weeks I have this pop up interrupt my screen quite often several times in a row.

I have searched every article online that is remotely similar to this problem and none of the solutions have  worked. 

Any ideas on what I can do to stop this annoyance?

I have been watching SBS OnDemand successfully until today. I now receive a consistent Video Playback error on any video using Firefox Ver 124.0.1.  I do not have an Adblocker installed. (Windows 11 Pro 23H2).  I do have AVG Internet Security installed.  I installed no apps. I turned off Enhanced Protection for sbs.com.au in Firefox but the problem persists. The problem does not occur on Chrome.

I've been plagued with incoming messages that use a foreground/background color combination too dark to read without forwarding the message and then applying white to the swept text. The uploaded image shows the progression of reading the message, sweeping the text in the message (still uncomfortably dark with low contrast), forwarding the message (still unreadable), then select the text and apply white as the text color. I've googled this problem to no avail as most hits are for color contrast in the inbox format for color.

One solution is to switch themes from "dark" or "system theme - auto" to "light" then Thunderbird switches to black text on a white background and the incoming message is readable.

Is there a setting I'm missing to automatically solve this without having to swap theme's to read a message then swap back to preferred dark mode?

I have been working fine with Thunderbird, but today it won't start up. It asks my master password, but then it doesn't show the screen with my email accounts / emails.. In task manager I have two lines with Thunderbird, but no activity. I tried to re install (without uninstall as I don't want to lose my emails), but that didn't change anything. Not sure what I can do.

I am getting the Mozilla Thunderbird Email wants to access your Google Account all the time while using TBM, I have removed the gmail account and the pop up does not show, so I know it is for the email account just removed. I re-add the email address and enter the email address and password and let it find the config itself. Click Done, and get the Mozilla Thunderbird Email wants to access your Google Account again, then click Allow and get the Authentication failure while connecting to server imap.gmail.com. message in the bottom left of my desktop. How can i get gmail to work again please.

Since the last update (123.4) I have this behavior in both iPadOS and iOS: when there's a link that opens in a new tab, most of the time the new tab will open an about:blank page instead of the actual link.

I noticed this happens as I use the browser more: if I force close it and reopen it, the links will usually load OK for the first 1-4 sites, but after a period (or loading a "heavy" site la Facebook) I can reproduce the error 90% of the time.

Happens on iPad Air 3 and iPhone 13 mini.

Here's a screen recording of this behavior: https://share.icloud.com/photos/0289O_mRO-taFjm4tcOH3bAtQ

Using the arm64 version of Firefox on a Surface Pro X causes several graphical issues. These issues started either with a update of Firefox or drivers.

This topic has already been reported, please see here for more information and documentation: Reddit: https://www.reddit.com/r/firefox/comments/182iojx/firefox_arm64_graphical_problems_on_surface_pro_x/ Mozilla Connect: https://connect.mozilla.org/t5/discussions/firefox-arm64-graphical-problems-on-surface-pro-x/m-p/52086

What can be done to report this issue and help it getting fixed?

As of today, I am unable to scroll with my mouse in google sheets. The scroll bar on the right disappears and I'm taken to the bottom of the spreadsheet and can't scroll back up. I have to use CTRL+Home and then the arrow keys to go down the rows. This appears to be only on Firefox. I tried a different browser and it worked fine.

I have a System 76 laptop running Ubuntu 14.04 LTS. The LTS (Long Term Support) ended years ago with Firefox 66. All of that works fine still. My problem is: 1. The world is telling me to upgrade my browser. 2. Mozilla tells me "Note: If you use your Linux distribution's packaged version of Firefox, you will need to wait for an updated package to be released to its package repository. This article only applies if you installed Firefox manually (without using your distribution's package manager)." 3. There will never be an updated package because LTS has ended. 4. IS THERE A WAY TO MANUALLY INSTALL A NEWER BROWSER LIKE FIREFOX 123?

I much prefer how google search looks on other browsers like opera and chrome (obviously), so I was wondering if there was a way to make it look like this on firefox. I have attached two images, the first is from Firefox and the second is from opera.