Firefox Support Forum

Firefox says I need a video codec to play a video (that is aparently somewhere on the page). It does NOT tell me what video, what video format, or what codec I need. How do I find out what codec I need?

Firefox version: 101.0 (64 bit) OS: Fedora 36

See images. The buttons on video players don't look like play, pause, gear, etc. They look like gamepad buttons. But a gamepad is not connected to my PC and I haven't connected one in months. I have tested it with videos on invidious.snopyta.org and tagesschau.de.

I always use the current Firefox on two Macintosh browsers running OS 10.14.6.

Recently (in only one of the computers), if I download a file, a pane containing recent downloads opens in the upper left-hand quadrant. This is distinct from the downloads portion of the "Library" area, and gets in the way of my ability to use Firefox efficiently.

I can't seem to find a way to keep this pane from repeatedly opening up as I download things. Can anyone help?

Before the recent 1-2 updates, pdfs,pictures and .torrent meta files used to get saved in temp folder which I LOVED very much. Recently these are getting save in my download folder instead of saving in the temp folder.

I changed this setting to allows ask. Still the files are getting saved in the download folder after opening.

Please assist me to resolve this issue. Thanks.

In the past, when ICS files were in a mail, I had been asked what to do, and could open them in OUTLOOK. This option has been apparently cancelled and it only asks where to save the file, without any option to open it directly. Furthermore, when I try to modify it in the "settings" and change it to "Always ask" I can't find no ICS files nor OUTLOOK SCHEDULE files. Please advice. Thanks

I was attempting to reduce the size of the tab bar using about:config and I screwed up making everything so small I can't determine where the setting is to change it back. What can I do to get it back to normal, preferably without losing all my shortcuts?

Hello Lovely Firefox Volunteers,

I hope this email finds you well. I am a long-time user and fan of Firefox, and other open source projects. Firefox is a fantastic internet browser!

Having said that, I was shocked and dismayed at what I encountered today. I was doing some tests for screen-reader usability on a website, and I came across the following:

Image 1 (attached): Advertisement of Screen-Reader Add-Ons for Firefox

Image 2 (attached): No Screen-Reader Add-Ons for Firefox are Available

The Firefox team is advertising screen-reader add-ons for Firefox, which don't seem to exist. I don't think the recommendation here should be: take down the advertisement for the Firefox native screen-reader add-ons/link to them, these seem to be really important for accessibility, and the Firefox team seems to acknowledge this. :)

There is some other missing piece - maybe there are Screen-reader add-ons for Firefox, and they aren't being linked to? Maybe the wrong tag is being used? (The auto tag that is used in the link is "screen reader"). Maybe there aren't any, and this is an area that needs some additional attention?

Anyway, I just thought I should bring this to your attention as making our internet accessible to people living with blindness and loss of sight is extremely important.

Sincerely, Katie

I use the recent activity page as a homepage with the icons of the websites that I most frequently use. but i can't figure how to adjust/pick the icons (websites) that I want to appear on this page. Something is picking them for me. And when I delete an icon another one pops in place but is generally a website I rarely use. How can I choose the icons (websites) that I want to appear on this page?

How do I add a site in setting - camera permissions to allow it to use my camera and microphone while still blocking other sites from asking to be allowed to use it.

Duplicate. See https://support.mozilla.org/questions/1385117

The background on the homepage link shortcut boxes keeps reverting to black and text underneath to white on my off-white background when a new version loads. I've used Colors to customize the look of my firefox but can't find any control for that. Once a new version kept the boxes white and the text black but now it's back to black again. Where is the control to fix this?

When I right click Firefox in my taskbar I have a list of "recent" links show up. I have turned this off in about:config but they still show up. Any suggestions?

I've noticed that when I download a PDF attachment or file firefox open the file on same tab instead of new tab.

How to I change settings to open pdf on new tab and not the same tab?

I have a user who runs SRS/Crystal Reports on their Windows 11 Lenovo laptop, but every time we go to the website where a Java-enabled pop-up window for viewing spreadsheets is supposed to load we keep getting a "A plugin is required to play this content" error message, but no option to install/approve the running of Javascript.

I have downloaded and installed the JRE and JDK on the endpoint device, but still no luck getting Firefox to load it. I am running the 32-bit version of the web browser, not 64-bit, so I am kind of stumped about how to proceed from here.

Is there a place I can manually download/install these Java plug-ins?

Thanks.

I have set the Noto family of fonts to be the default font family but websites that don't specify a font or specify sans-serif or monospace get Liberation Mono. When I changed any option in the fonts settings, the entire browser becomes Liberation Mono. I want Noto Sans be the default font for websites and for the Firefox UI. I tried to fix it by preforming a Firefox Refresh, but it didn't work. I think the problem began after upgrading to Firefox 100 but I'm no 100% sure.

So, for a few months now, the preview panel in Firefox has been popping up with every successful download of a file from online. Its a bit inconvenient because anytime it pops up, it basically tabs me off a page and interrupts my writing or the like. This wasn't an issue last year when after successful downloads, the downloads icon in the toolbar just lights up blue to signify a successful download. The preview panel popping up every time Firefox successfully downloads something (due to reasons, I download files in bulk from multiple sources) is incredibly irritating. The problem goes away when I just remove the download icon/panel from the toolbar entirely. I just wanna know WHY this bizarre phenomenon happens.

I was using Ctrl+K on some websites to do things like site-specific search, task bars, and so forth, but recently Firefox started capturing it for focusing on the search/address bar (https://support.mozilla.org/en-US/kb/keyboard-shortcuts-perform-firefox-tasks-quickly#w_search).

Is there a way to unbind `Ctrl+K` in Firefox?

I cannot disable google document viewer in Google Drive. Every time I go to open a recently downloaded PDFs in Google Drive, it invokes Document Viewer unless I specifically right click and tell it to open with Acrobat. I have disabled everything thing I know in both Chrome and Firefox, cleared the caches, rebooted, and the default behavior persists. Worse, the Document Viewer REQUIRES a complicated, infuriating sign in process that has only worked ONCE in dozens of sign in attempts. Please help with this.

The Firefox desktop browser default font is replacing all fonts on some websites, only title fonts on some others, and then leaving others unchanged. It seems random, and I can't stop the default font from taking over randomly on most websites no matter what I do. This was not happening until today, and no browsers or general MacBook Air preferences were changed between today and yesterday when I last used the browser on desktop.

Under Firefox Preferences » Fonts » Advanced, I've made sure to check the box to "Allow pages to choose their own fonts instead of your selections above", and I've unchecked it, and I've re-checked it, and the default is still overriding fonts on most websites.

I've quit and restarted Firefox 3 times.

Help!

I have always set my option for all download file types to "Always Ask" and now Firefox not only asks me where I want to save the downloaded file, but also downloads a copy to the Windows Download folder. Why am I getting double downloads? I only want one copy of a downloaded file, not two copies. Now I have to go to my Windows Download folder and delete the duplicate downloaded files. My question is, if my Firefox download option is set for all file types to "Always Ask", then why are you downloading the file twice??? I have specific folders where I want files to reside. I don't want to have to remember to go to my Windows Download folder and delete the duplicate files. How can this duplicate file download problem be fixed?

Long time user, Leo