Diễn đàn hỗ trợ Firefox

No videos appear at all on Teachable, just a blank space where video should be. I have allowed video and audio (video and audio work on many other sites). I have cleared my cache. I have to use a different browser to use this site. I have also noticed other sites that have the same problem.

I have the same issue that was reported here: https://support.mozilla.org/en-US/questions/1358340 and here: https://support.mozilla.org/en-US/questions/1409149

After a Firefox restart for a version upgrade, there are 8 windows listed in the Windows menu, but only 4 are visible. Trying to select one of the invisible windows from the window menu, or cycling through open windows with cmd-` displays nothing. I tried checking other desktops to see if the windows had landed there, but they're not. The missing windows don't show up in Mission Control.

I also tried exiting FIrefox, deleting the xulstore.json file, and restarting. This had no effect.

I'm on a 2021 M1 Max MacBook Pro Firefox 117.0.1 Mac OS 13.5.2 (22G91)

Any ideas? This is a weird one.

Thanks!

I've been watching and following along with a Unreal Engine 4 Course on Youtube for some time now (mentioning in case the resource usage has something to do with it), and in the past couple days I've noticed a pretty serious and annoying bug. When I pause the video, tab (Cmd + Tab on MacOS) into Unreal Engine, do some things, then tab back and resume the video, it will play for one frame and then stop and buffer, but the audio will continue playing. The only way to get the video to resume is to skip forward/backward in the video (either with the arrow keys or the progress bar). I've also tried Troubleshooting/Safe mode and the issue still persits.

I've been noticing for the last month that after a few hours in a browser window, I'll suddenly have a pinned tab for some random website. Some for promotional things, others in languages I don't understand, etc. At first I downloaded a webpage blocker, blocked the ones that were pinned, and deleted the tabs. However, after a short while (an hour or two) they would appear again in pinned tabs only this time it would say website blocked.

I uninstalled and reinstalled firefox in hopes that would solve the issue, but it is still happening. I unpin the tabs and delete them immediately after I notice them, but they keep appearing. I really like using Firefox and use it often for work, but I'm concerned for my personal and work security. What should I do?

When I use a vpn with firefox (not the firefox vpn), I cannot open normally blocked websites such as twitter or youtube, and instead they open in a sort of half-loaded state (see image). I don't face this problem with other browsers. I have tried deleting and reinstalling firefox, but it doesn't seem to work. Can anyone help out?

Up through Monday, 10-16-2023, I could play Amazon Prime Videos. As of Tuesday, 10-17, I no longer can. I can do this on other browsers, e.g. Chrome and Safari. Can this be fixed or do I need to stop using Firefox?

Firefox no longer opens my previous session when re-opening the browser. "Open previous windows and tabs" is checked in the general of browser settings, but no longer performs a such. Was never an issue until a few days ago.

Hi,

After updating Firefox to 116.0.1 my tabs keep randomly crashing. I get some crash reports *occasionally* - meaning not all crashes produce a crash report - but I'm not sure what to do with them, they seem inconclusive. The last report (not for the last crash, though, which didn't produce any report) is bp-3334b934-58b5-4226-887a-235300231117

I am told to disable pop-up blockers in order to have a payment verified. I do not know what pop-up blockers are, I do not know where they are. When I go to Settings and search for pop-up blockers, I am told "Sorry! There are no results in Settings for "pop-up blockers"; and instructed to visit Firefox Support. I have been sent on this circular quest three times now. Please help me.

In macOS you can set up a global keyboard shortcut for the Move Window to Right Side of Screen command via System Settings > Keyboard > Keyboard Shortcuts.... In most apps that support the Move Window to... commands, this will simply move the window to the desired side of the screen when the key combo is pressed.

However, in Firefox the key combo will start the animation as normal but the window will then bounce back to its original location. It's only when the command is activated via a keyboard shortcut that it does the bounce back behavior, though; the command works as intended when activated from the Window menu in the menu bar or from Option + green button in the top left of the window.

The key combo I set up was Shift + Option + Command + Right Arrow, but I've also tried a couple of different key combos and they all did the same bounce back behavior. I've tried it on machines with different versions of macOS (Sonoma beta and Ventura) with the same result. The bounce back behavior also effects the Move Window to Left Side of Screen command.

Every time I do a search for services "near me" (hospitals, hotels, etc.), Firefox is using an out-of-date five-year-old location. Very frustrating! How can I change this? Anyone's help is much appreciated - I just haven't been able to find a link to help me fix it!

I attempted to install a router but Mozilla sent a caution message that the brand (Net Gear) was insecure. Which brands are secure routers?>I have a Mac Book Air purchased a few months ago and have never had internet at home. This is first attempt. Thanks.

Occasionally all my tabs go away. I always find them, but today,"history>recently closed tabs" is greyed out. NEW I did not even close Firefox Please help steve z

mac os 12.1  ; firefox 98.02

I am a Mac user and using a second monitor display. When I move a Firefox window to the second display it doubles in size. I cannot figure out how to get it to display properly (as it displays on my original monitor). Please help.

I've been trying to days to restore my settings and have followed all the prompts but Firefox is still disabling cookies. Anyone know of a fix that will restore back to initial setup? TIA