Firefox Community Forum

Hello Mozilla Community!

I've been at this for about two months and can simply not find a solution. I normally have 40+ tabs open in my desktop browser. I can put my mouse cursor/pointer over the tabs and using my scroll wheel shift visible tabs left or right (not actually switching to another tab).

All of the sudden it seemed that when I do this the tabs just absolutely fly by. Like I can't shift just two or three tabs at a time, it's shifting 10+ tabs with just a single scroll wheel 'click'.

I can see ten tabs or so and I know that what I want is just a few to the right, when i begin to scroll them the tab I want goes shooting by so far left it's gone now. I 'm left having to click the left/right arrows to move just one tab at a time, but if I click them too fast I get basically the same response. They just go flying by.

How can I slow this down without also changing the vertical scroll speed of the mouse when reading long webpages?

Thank you, John

My bookmark toolbar is empty. I have made sure "Always Show" is checked. I have tried to put new Web Sites on the toolbar to no avail. Nothing seems to bring back my bookmarks. I have added the little star with the bracket under it to the bookmark toolbar. It has many of the previous bookmarks but many are also missing. Entire folders are missing. I have been messing around with the tabs toolbar because they are about 30% too tall. About 1" too tall. 3/4" above text and 1/4" below. About 1/3rd of my screen is taken by tool bars. Approx 1 1/8" by the bookmark toolbar alone which is showing only the star with the bracket under it ( Far left of line ).

After browsing the internet, i find new stuff on my screen. Then I have to spend time deleting all the shortcuts I don't want. I have the home screen set the way I want it and don't want it to arbitrarily add short cuts I don't want or need. I hate it when it messes up what I have set.

I asked AI: "I'm being prevented from using options which cause pop ups but I don't think I've deliberately changed any settings. I want to use "analyze the board" on the Gameknot website but I'm being prevented from using it. How can I get it back?" I followed the instructions: "Mozilla Firefox: Click the three lines (top right) > Settings > Privacy & Security > Permissions. Go to the "Pop-up windows" section and click Exceptions, then add https://gameknot.com" but I haven't re-acquired use of the pop up I ant to continue working. I want it back and its extremely irritating as the work around is very long and boring.

My Dell Precision Laptop from 2019 runs a frequently updated Ubuntu 24.04. About one or two weeks ago, after one of the latest Firefox updates, i noticed that video streaming produces rectangular flickering in rapid sweeps. ( Also fast scrolling large text websites produces similar flickering, I think I would have noticed it before...) . If you detected it once, you see it always again... :-( First I fiddled around with the nvidia settings because the driver was also recently updated, without much success. Playing locally stored videos, e.g. with VLC media player, still works fine, so the nvidia driver is not the problem i think. Yesterday I installed Chromium and the video performance is fine! As good as with firefox some weeks ago! So it must be one of the latest updates, that causes the problem. Generally I like firefox more than chromium. I like the control you have, e.g. via Add ons.. So I hope that the firefox performance will increase again... Thank you for firefox! Florian Mengedoht

The built in VPN worked great for me for a couple of months, but now whenever I try to turn it on, it starts with the "Get Started" screen, which takes me to a page to confirm my account. When I press continue the VPN button just goes back to the "Get Started" screen & the loop repeats. I've tried signing out & refreshing my Firefox installation but I keep getting the same result. Before it started doing this the button to turn on the VPN was appearing but would not react to clicks.

Hi Moz Support,

I've had this happen several times before, but this time it really annoyed me.

I sent tabs from one Firefox instance to another on another device. I closed these tabs on the source device. These tabs were quite old this time, I'd not opened them in a while - this becomes important later.

On the destination device, let's call it "madbilly's destination Firefox", these tabs didn't arrive. After doing a couple of tests where I sent a tab from my mobile to this instance, I realised that this was a similar problem to what I'd had before, which is one where a Firefox instance/profile for some reasons "resets" itself and it seems to create a new instance in Firefox Sync. Tabs which have previously been sent to "madbilly's destination Firefox" don't arrive, because (I think) it's not registered in Firefox Sync as the same instance. These sent tabs, if closed on the source instance (which I did) are lost, unless one reopens the source instance and Ctrl-Shift+T reopens closed tabs. Unfortunately, in this case because the tabs were old and I hadn't opened them for a while there was no way to do this, because Firefox doesn't remember closed tabs which are not stored in memory (another bug, any fix?), except for looking in old session store backups which I'm going to do after I write this post, though I don't know if that will work.

Also, on Android, because it only remembers 10 closed tabs it's not really feasible to retrieve lost sent tabs this way either, and as there's no access to the session store backups the tabs are definitely lost.

Oddly, when this happens "madbilly's destination Firefox" usually appears twice in the send-tab-to menu, but in this case it didn't. To be able to send to this instance I had to sign out of Firefox sync on this instance and sign in again. Then the same instance appeared twice in the sync menu, the old one being now unreachable.

I'd like to know: 1. Why does this happen? 2. How to avoid it happening? 3. Is there a bug registered about this? 4. When will it be fixed and prevented from happening again.

I generally find that this happens when a Firefox instance isn't shut down properly, which on my old desktop I put down to it running out of resources, but on this shiny new laptop from work that doesn't make sense.

All help much appreciated thanks :)

With the latest updates, my Firefox window has no way to minimize/resize/close the window. (There are also no tabs/bookmarks) I see nothing in the settings options that seems relevant.

Using Windows 11 on Lenovo laptop, Firefox 152.0.5

Trying to watch a video on Nebula and it will not load. Receiving the following errors:

NS_BINDING_ABORTED Media resource https://nebula.tv/static/small-video-h265-DaPPbwJq.mp4 could not be decoded, error: Error Code: NS_ERROR_DOM_MEDIA_NOT_SUPPORTED_ERR (0x806e0003) Details: Utility MF Media Engine CDM only support for media engine playback

Just made a new profile and wiped everything from my history following another issue which isn't strictly speaking resolved. I am unable to load image-dense websites with any consistency. Issues do not occur on other browsers. I receive similar errors on Twitch:

The resource at “https://assets.twitch.tv/config/settings.1c614f361eb0408365c5a3fce34f6bf7.js” preloaded with link preload was not used within a few seconds. Make sure all attributes of the preload tag are set correctly. www.twitch.tv The resource at “https://assets.twitch.tv/eppo/api/flag-config/v1/config?sdkName=js-sdk-client&sdkVersion=3.1.2&apiKey=3mv-BKCSZJDyZrwfqK86har6u13NgxRh.ZWg9bTRsZHJnLmUuZXBwby5jbG91ZCZjcz1tNGxkcmc&callback=__setEppoConfig” preloaded with link preload was not used within a few seconds. Make sure all attributes of the preload tag are set correctly.

I'm using Windows 10 on a PC. Norton Security app is preventing web browsing by Firefox. The message I get is: "We prevented your connection to ful.hartonly.com because it is a dangerous webpage. Threat category: URL:Blacklist" I can still web browse using Google Chrome without any problem. What is ful.hartonly.com and how do I clear it?

I have always accessed my LinkedIn account on Firefox. Suddenly today, my PW does not work, and my email address for PW reset does not return a PW reset link. Cleared cache without success. I can access LinkedIn on Chrome. Can you suggest what I have done to my Firefox to cause this? Thanks!