Firefox Support Forum

Open this url https://openfde.com/intro.mp4 and firefox shows "video can't be player because this file is corrupt".

Web Console logs: ``` Media resource https://openfde.com/intro.mp4 could not be decoded. intro.mp4

Media resource https://openfde.com/intro.mp4 could not be decoded, error: Error Code: NS_ERROR_DOM_MEDIA_DECODE_ERR (0x806e0004) Details: void mozilla::AppleVTDecoder::OnDecodeError(OSStatus): OnDecodeError:ffffcd9a intro.mp4 ```

`ffmpeg -i` with this video file: ``` Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/path/to/intro.mp4':

 Metadata:
   major_brand     : isom
   minor_version   : 512
   compatible_brands: isomiso2avc1mp41
   encoder         : Lavf58.76.100
 Duration: 00:01:51.77, start: 0.000000, bitrate: 3243 kb/s
 Stream #0:0[0x1](eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p(progressive), 4096x2304 [SAR 1:1 DAR 16:9], 3109 kb/s, 25 fps, 25 tbr, 12800 tbn (default)
   Metadata:
     handler_name    : ?Mainconcept Video Media Handler
     vendor_id       : [0][0][0][0]
 Stream #0:1[0x2](eng): Audio: mp3 (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)
   Metadata:
     handler_name    : #Mainconcept MP4 Sound Media Handler
     vendor_id       : [0][0][0][0]

```

Chrome is fine.

I have a new PC running Kubuntu 22.04, with Mozilla Firefox 120.0.1 (64 bit) installed. Standard, the system window title bar was hidden. But I wanted access to the "Move to desktop" menu and wanted the title in the title bar. So, in "Customize toolbar" I checked "Title bar". The title bar reappeared, but a complete border along the Firefox window became inaccessible, and when clicking in that zone, it effectively clicked in the window behind. In particular, the complete menu bar is inaccessible, as well as the scroll bar on the left and in the bookmarks sidebar the fold/unfold. And Mozilla Thunderbird 115.5.0 has the same annoying behaviour. Even when hovering over some menus in the Mozilla window, you can sometimes see reactions from the window under the Mozilla window. On older Kubuntu computers (up to 18.04) with older versions of Firefox (up to 113.0.2) and Thunderbird (up to 102.11.0) I do not have that problem. How can I get at the same time access to both the system title bar and the menu bar ?

Hello, currently using 120.0.1 (64-bit) for macos and would like to know how to change behavior: When i'm trying to modify url in tab i'm currently working on and press enter/return it opens modified url in new tab for some reason. But when i hold option it opens it in current tab, is there any way to make it as default behavior? Thank you very much👍

Hi, for the past few Firefox releases, I run into a problem where the mouse cursor does not change into a "hand" when hovering over something clickable. Instead, it continues to keep its arrow form. This is not simply a cosmetic issue, as it appears to cause issues with websites that rely on hovering for drop-down menus, as well as clicking on YouTube videos, for example.

The issue briefly resolves itself when I restart or reset Firefox, but it always comes back within a few hours. I have also tried disabling all extensions to see if there is any improvement.

The computers bookmarks after September 28 and before December 1 2023 are missing as well as the internet history in the mozilla browser only. I see no possible way of restoring them. I see no way to contact mozilla directly about this either.

Firefox since 102 or 103 has a giant issues with gifs, movies ect after resuming from hibernation. In the Dev mode there are errors like this:

MediaLoadExhaustedCandidates = no any media can be loaded

Invalid URI. Load of media resource %S failed

Why does it happen only in firefox? Even in FF 120 Windows.

Hello,

I made a download 10 months ago, it failed OK.

But every other week that same old download keeps on restarting and failing.. its some kindof bug.

It then piles up with all failed downloads from the last year and they all try to load again and again automatically.

I tried to reinstall firefox and all but its a weird bug.

I have screenshots if needed.

Best regards

Alex

I followed the instructions at [[Unload inactive tabs to save system memory in Firefox|https://mzl.la/3AdRbLx]] but I still occasionally see the tab refresh when I select it. I start with a search on Bing, click an article to open a tab, follow links from there, back to the first tab and select another. I repeat this until there are several tabs open. Sometimes the page refreshes when I switch back to one that I previously reviewed. Is that controlled by the option browser.tabs.unloadOnLowMemory? if so, it doesn't appear to be working. [Edit] - The last time this happened I checked my system and found 10gig used of 64gig installed. I'm using the most current version of FF 120.0.1 on Windows 11 Pro v 22H2.

Always when want to use the Website "Weather.com" my tab brakes down with the announcment" Der Tab ist gerade abgestürzt" which means: the tab just crashed. I do not know why this happens. Does anybody has a suggestion what I can do? I use a MacBook pro from 2015 with OS 12.7.1 and Firefox 120.0.1 Thanks so far Tobias

When I receive important gmail emails, I get notifications both sound and a popup in the lower-right corner, even if no Firefox window reaches that spot. Next to that popup X there's a ⋯ button and clicking it has 2 settings options and neither of those leads to something which could point to how I get notified. In about:config I entered "gmail" and got "extensions.webextensions.ExtensionStorageIDB.migrated.checkerplusforgmail@jasonsavard.com" but it's not showing in enabled extension.

How can I dis/enable it and possibly change the settings of what notifies me of important gmail emails?

Thank you kindly for your help

When I do a search, then click on one result, it loads the result website in the same tab; but the Back arrow <- in the menu bar is grayed out, so I can't go back to the search that I did to select other results. Mac Monterey 12.7.2, Firefox 12.0.1 , searching with DuckDuckGo - but it also happens when I search with Google.

Until the most recent update, which came along with a Microsoft update, I was able to stream Peacock.com but now I'm getting an error message that my system configuration isn't compatible with Peacock. I have also had issues with YouTube, which keeps telling me that I have to disable adblockers - which I'm not running. I had another unrelated problem that I fixed by doing a system restore to before the Microsoft update, so there should be no issues with that end of things. It has to be Firefox because I can still stream Peacock on Microsoft Edge.

So, does ANYONE have any idea how I can fix this problem? I much prefer using Firefox to Edge and I don't use Chrome.

Thanks.

When using the reader view, articles get cut off. A good example is newyorker.com or washingtonpost.com. Is there a setting or two where I can ensure the entire shows up?