Diễn đàn hỗ trợ Firefox

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

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 haven't used my microphone in Firefox in years. I tried today, logged into Google Voice, which tells me it can't access the microphone. I set permissions in Firefox's settings. I turned up all the mic settings in alsamixer. I tried https://mdn.github.io/web-dictaphone/ , recommended in another thread here, and it doesn't record either. I can use the microphone outside X, with sox's rec. I also can't record a new greeting in Google Voice.

Firefox 100.0.2 , Linux, Slackware 64-bit, all packages updated this morning.

Hello Everyone,

After inserting the proxy information, webpages in the container tab refuse to load/connect, I insert the IP address and I've also tried the Fully qualified domain name, using the type://host:port syntax, I get "The proxy server is refusing connections" and "The connection has timed out" error messages.

If I setup the proxy via the settings menu the entire browser uses the proxy server address, I am trying to specify a different proxy server for each container.

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.

Hi,

Often the ctrl + m (mute tab) shortcut gets in my way while using the browser as i use this shortcut in something else. I would like to know if it is possible to disable that.

Thanks. (Message written using Google Translate)

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?

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 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

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 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 got help with this from your group some weeks ago, but I had to reinstall my Ubuntu OS (linux v.20.04.4 -- using firefox) recently and can't recall the answer.

When I view a WikiSpecies list of file names (e. g., see https://species.wikimedia.org/wiki/Pentatominae), the instances which have been installed but never used should be in a different (reddish) color. I am attaching an image of a page containing a file named "Abadia" (first one on the left, just under "A") which is unused. I also am attaching an empty "Creating Abadia" which is the result of clicking on "Abadia".

Please tell me how to change the image of an unused, empty file. I recall that there were two different choices SOMEWHERE in the system, "Always" and "Never" I think: One of them forces a system-level color pattern which includes reddish unused items; the other allows the used to program arbitrary displays such as the above (typical example from the dconf editor is 'bg_color: #f0f1f2; selected_bg_color: #023C88', but this editor does not change the appearance of a file instance.

All my menu texts are so TINY now, that I can't read them, but the browser page is SO WIDE that I can't ever see a whole page and I have to scroll from side to side to read things, which is a ROYAL PAIN as I miss seeing a lot of things. No one can seem to help. I tried the limited percentage things, 67% used to work but now that is too big and when I go smaller I can't read ANY of the text, it is TOO TINY! I can't do my work! The screen shot won't paste on here.

The Bookmarks Toolbar is showing up with a message to use it, even though I don't want to use it and have not added any bookmarks to it. This has shifted the actual screen down one line and messed up things I do that rely on screen positioning. Please turn it back off.

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.

I have 2 questions after the upgrade ( If that is what they call it). #1. Getting all my apps re-setup , I noticed that some were not showing up on the bar to the right of my search bar. #2. When I open FF it only opens with a half page on the left. This next jusy a polite general question. After the uproar about fvd suspension, why did FF feel the need to do it again? What I mean is why did they wipe out All my apps and deleted other programs I had BOUGHT and now having trouble getting downloaded again when they were working perfectly before 100? Are these programs also considered "Dangerous". Sorry. Could you give me an approved FF alternative to FVD and I don't mean this piece of garbage that is on your web page. You wanna throw something against the screen every time you look at it.; UGLY!!!!

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?

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?