Firefox 技術支援討論區

I noticed a few days ago that the fullscreen function no longer works for embedded YouTube videos in Mozilla. Then tonight it occurred too me to check and see if t works when you watch a video at YouTube.com. I tried several videos at random and none of them had the fullscreen function. The fullscreen button (box) is there, but when I click on it nothing happens.

I also tested videos at Hulu.com, DailyMotion.com, the Internet Archive and Veoh.com, and the fullscreen function is fine on all of those sites - it is only YouTube that seems to have a problem. I also tested the same videos in the Internet Explorer browser and they work there for all of the sites mentioned, including YouTube.com.

I hope this can be repaired, I really like the Mozilla browser and would hate to have to switch to something else.

I am in Linux Mint and I am using a TV with a HDMI cable, my tv is my second monitor, but when I click something in my first monitor the video automatically exits the fullscreen, can somebody help me?

I cannot see the maximize, minimize, or close buttons with Firefox Quantum. It makes it very annoying to manipulate windows so I'm tending to go back to using Chrome even though I prefer Firefox. I've tried to correct this though Options and Customize but there seems to be no solution there.

Seriously guys.

I was in the middle of a video on youtube, firefox gives me the "close program or wait" option. I click wait, but it still crashes. Whatever, right? Just re-start it and go back to my video.... Nope. Nada.

Firefox's nifty little "updating" dialog box appears. I thought to myself aloud, "hmm, I do not remember agreeing to an update... let alone firefox inquiring about one."

But what do I know, right? It's probably a new add-on, or an update to the add-ons and plug ins I've installed. It happens.

ALAS!!! Firefox opens anew, but is lacking in quite the pivotal things! One of which being the top address bar. The whole thing is gone. Vanished! Vahmooshed! GAHN!!!

My first thought was that I had accidentally hit F-11. Joke's on me, right?

nope.

Because not only is the everything up top missing, but also my whole Windows bar at the bottom has gone missing. What in the blue blazing cahones of Zeus is going on guys!?

If this is an easy fix, I apologize in advance. I'm not so suhmart sumteyems. Hurr durr.

But, if this is some form of "full screen" layout that you guys are unveiling, please give me a way to quarantine it from my computer. It's awful, like flossing with razorwire while naked in front of Grandma. I don't recommend it!!!

But seriously. I know I've attempted to be humorous above, heck, even my username is an attempt at comedy. But I do have a genuine issue, and would appreciate an answer of some kind.

Thank you in advance for not replying with (tl;dr).

Sincerely, Scootlebottoms XIV of Westercheesenstudel

~P.S~ The attached picture of John Cena is relevant. It is an accurate depiction of how "SUDDEN AND FROM OUT OF NOWHERE" the update of terror was for me. I believe is accurate. Yes.

My computer was working fine. I have toolbars bookmarks to oft used sites that ran along the top portion of my screen. For some reason when i next opened Firefox, the page was only about 4 inches wide and 4 inches high. I could not fully read anything on it but you could see my toolbars were still there. when I go to full screen all my toolbars disappear. I go to the customize option under the three menu lines and it has no effect. Why has this changed and what can I do to restore it.

Hi All, After bringing up Firefox I click on the menu button in the right hand corner. After it drops down I click on the button for full screen and it doesn't go into full screen. I still see the tabs at the top. I have tried a couple things that helped in the past but it didn't help this time. If someone could give me a few options as to why it is ding this I would be really grateful. Once I have that information I can figure out what I should do.

                                                 Thank You very much  and have a good day.

With Firefox version 63, I have the problem on YouTube and Netflix, if I snap Firefox in a corner (with mouse or WIN + arrow keys) and switch a video to full screen, left and right is still a few pixels square. In addition, the taskbar is in the foreground (can not be fixed). [IMAGE 1]

If not left, right (top or bottom) snapped then it works, if Firefox is maximized too. The error occurs only in Firefox. Exit Explorer.exe and reboot PC does not work. Error exists since update on the first day of release (early October) - version has been withdrawn by MS,

I also installed the version on my laptop and have been updating ever since.

Apparently the error also occurs with some others: https://www.reddit.com/r/Windows10/comments/9lwzmm/fullscreen_broken_in_october_update/ but it has probably not changed.

Useful data: Windows version 1809 build 17763.134 Graphics driver up to date Firefox completely reinstalled (profile, cache & cookies deleted) even without add-ons started. 2 monitors On the laptop (also tested with 2 monitors) no problems.

I am thankful for every help. Error is really annoying.

Firefox (74.0 64 bit) on a Macbook Pro (Retina, 15-inch, Mid 2015) not allowing right click on tabs in full screen?

If I change Firefox to view Full Screen I lose the right click on any open tabs. If I exit Full Screen I regain right click functionality. I've tried in safe mode with the same results. I've also tried reinstalling Firefox.

I've been attempting to set up a new Windows 8.1 computer. I have installed the most recent Adobe Flash Player and have "Enable hardware acceleration" unchecked for both FireFox and Adobe Flash Player.

However, when I make the YouTube video full screen on the FireFox on my Windows 8.1 computer, the video is jumpy and choppy. It is perfectly fine when it is not in full screen or in theater mode.

I have already tried safe mode and the same thing occurs. I have updated all possible driver-related problems through Windows Updates and the problem continues to occur.

Can someone please help me out here and give me a solution to this problem? Please don't tell me to use another internet browser because I am used to and I like FireFox and installing more than one browser on a computer isn't a good idea. At least I don't think it is.

If someone could just please help me out with this, I'd really appreciate it.

Thank you.

Why I can't get full screen (kiosk mode) on Firefox? When I make full screen address bar, tabs and bookmarks still on top. But I want full screen like in other browsers. Please make this feature available.

As I said, I use a 4K Colour TV (all correctly setup and running) as a monitor and most times all is fine but occasionally when I switch on my desktop, Firefox shows a small 2K display so I have to double click the title bar to change the display back to 4K. I also use, concurrently, Opera (for it's free inbuilt VPN) and it sometimes does the same thing. This also occurs with Skype AND uTorrent at various times. Because it is so common I suspect my Windows 10 64bit Pro must be sending some sort of signal to cause this behavior? All in all Firefox does this less than the other three Apps  :)

Normally when you create a new tab with ctrl+t you can directly write something, it directly go to the address bar. When you come from a video in full screen, in youtube for exemple, and you press ctrl+t, your typing is not focused on the address bar as usual and what you are typing go nowhere.

What is usual ? When come from to a normal tab and create a new tab with ctrl+t, when I begin to type, I am directly typing something on the address bar.

What is the issue ? When I come from a youtube video that is in full screen, I want to create a new tab with ctrl+t, my typing from the new tab address bar go nowhere and nothing is written.

How to reproduce the issue ? Open in a new tab a video from youtube Enter in full screen Create a new tab with ctrl+t Try to type something : Nothing is typed to the new tab address bar

Thanks for your enlightenment !

Regards.

I come from Linux Debian Buster / Firefox 68.7.0esr (64-bit)

On laptop or desktop (with yahoo.com) the menubar, if enabled, takes up one line for no reason. Its I would like to be able to enable/disable the menubar via a customization icon that I would position on the line below the bookmarks toolbar line. One free line of vertical window space is important.

A second customization could also be a toggle for the bookmarks toolbar. It is a pain to have to right click on a clear area to enable/disable either the tool or menu bars.

When I play games online, when I move the cursor too far to the top, I get the drop down to end full screen. I don't want that. I want to choose to leave full screen when I want by pressing ESC. It messes up the game when that drop down menu pops down.

I find that when I make a video in Firefox 66 go full-screen that the menu bar and dock in MacOS 10.14.4 become hidden. I have looked at https://support.mozilla.org/en-US/kb/restore-menu-bar-firefox which confirms this behavior, but I am wondering how I can turn this feature off completely? This behavior does not occur with Safari or Chrome and it was a bit jarring the first time it happened to me.

In the below image, a Firefox window is full-screen on a second monitor.