Diễn đàn hỗ trợ Firefox

I set the browser to Open previous windows and tabs at restart, on General settings, but it always opens blanc, not saving any tab from the previous session.

How can I correct this issue, if it is one, please?

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.

New computer, Win 11 and FF 120.0.1 all fresh installed and updated with latest versions. The double line spacing in bookmarks and all other menus is back. There was a fix for ver. 89 with the css file trick, but that DOES NOT WORK with this version. All other options I've run across don't work either. Why do the Mozilla software engineers think it's a good idea to break their flagship application every few years? Rhetorical question, I know.

Does anyone have a user fix that actually works with this FF 120.0.1 version? Something an experienced user can do that is not a programmer. analyst or engineer? I've been using FF since it first came out to challenge Microsoft's IE. Late '90s? I'd like to keep using it but this is too annoying to tolerate.

If anyone can help with step by step instructions, I would be eternally grateful.

If I download a .PDF file (or anything else) Firefox asks where I want to save the file and I can change the name of the file. The file is then downloaded to my selected folder on my PC. BUT a copy of the file, with original name, is also stored in my C: downloads folder. How can I stop that? I know how I can change the default folder but I do not want any default download folder, I want to be asked "Where?", "Name?" and the ONLY copy of download goes to that location.

After running Import and Backup and selecting the date I want, the left column in the Library shows History, Downloads, Tags, and All Bookmarks. Under All Bookmarks, those folders have all the stuff I want in my Firefox browser. Currently my browser shows the folder names, but the folders are empty. How do I get the left column into my browser?

Foxnews.com causes Firefox 102.0.1 to freeze when scrolling pages with lots of images. Closing and restarting FF does not help. The freeze reoccurs. What does help for awhile is to delete the file places.sqlite. After that FF runs for a few hours until the problem happens again. Is there a setting or other fix for this issue?

AdBlockPlus and uBlock Origin are both installed, but are disabled on www.foxnews.com.

How can I block the dropdown video miniplayer in Firefox 120.0.1 on Windows 11? It doesn't happen in MS Edge.

I've already set the following with no results:

media.autoplay.default = 5 media.autoplay.blocking_policy = 2 media.autoplay.allow-extension-background-pages = false media.autoplay.block-event.enabled = true media.block-autoplay-until-in-foreground = false

Is there a setting that I've missed? Can the miniplayer somehow be blocked using userContent.css? Can the miniplayer be totally removed from Firefox?

Hello, I've got two profiles, 'Home' and 'Work'. I run two Firefox windows with these profiles. Now, I want to open a link from another application, like Slack or terminal, and want it to be opened in some predictable Firefox window. Now it depends, probably, on which Firefox window I opened last. So I want to be able to select in which window the links should be opened: I see it as marking a window as the default one. Note, that I don't want to set a default account, as there's no default account for me, I always choose which account to use when opening Firefox.

Thanks.

Running Firefox 120.0.1 on Windows 10. I also run Vivaldi and test with Chrome. I installed Google Analytics Opt-Out add-ons on FF, Vivaldi, and Chrome. When I go to any site with links to X (Twitter), and click on the link, instead of that link appearing the last X link I went to appears. If I click again I get to the correct link.

When I disable the Google Analytics Opt-Out add-on all works fine. This doesn't happen with either of the Chromium browsers, so I'm thinking there's something happening in Firefox by avoiding Google analytics that isn't in the Chromium browsers. In addition, this behavior began within the past couple of weeks of recent FF updates.

I installed several different Google Analytics add-ons and the same thing happened in FF, but not in the Chromium browsers.

Any ideas? I know I can disable the analytics crushers but I really don't want Google hijacking my browsing.

I am using Firefox 120.0.1, and I have difficulty to take screenshot.

I tried to press shortcut key and button in toolbar as shown in the attached image, but they didn't work.

Is there any good way to fix this problem without reinstall firefox app?

I have Firefox set to ask me where to download files that I want to download. It works for normal download links, but when I'm using my credit card company site's PDF viewer to look at a statement and I click on the download icon or link in the upper-left, it simply downloads the PDF (to my chosen "Save files to" folder in Settings). Is there a current way to change this behavior? Is this something that the website's code determines, overriding my Firefox setting?

The puzzle piece icon is not on the toolbar. Neither is it shown in the customize toolbar dialog. I have reset the toolbar to default, rebooted Windows 11 and removed & reinstalled Firefox 120.0.1 (64 bit). Those did not work. How can I restore the puzzle piece icon to the toolbar?

Hi, Please advise how to remove, disable, delete, block the new added "Your browser is being managed by your organization." to my Settings page. I'm home user .Also Please know that this is generating "FALSE FINGERPRINT CERTIFICATES" thank you

I frequently use GroupMe on desktop from Firefox, on two separate computers (a self-built desktop, and a Dell Latitude laptop).

Starting sometime over a week ago, I have been unable to drag & drop or otherwise upload photos in my chats. The only method that works is pasting direct URLs of JPGs.

In all other circumstances, I get the uploaded image error attached to this post.

Two different GroupMe support agents have said that, since image upload is still working in Edge, that it's a Firefox problem.

Tried clearing cache, site cookies, reset the browser, ran in troubleshooting mode...same result every time.

This is not the "image file size too big" error. I used to routinely post captures from the Snipping Tool, and I can't anymore.

I'm not sure where else to go to troubleshoot this. It's very annoying. Any suggestions?

Dark Reader works for all sites except for mozilla.org, I think these webpages are over-ridden by the Firefox browser? I saw a couple archived posts recommending global changes for all sites via Firefox -> Settings -> Language and Appearance -> Colors, or to install themes. Neither option would work. I don't want to override all sites to dark globally, that's way to much change, just let Dark Reader change just mozilla.org.

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.

Every time I am trying to search, google is always pinned on my search bar, and I want to get rid of it. How can I remove google? (On the image I marked the issue with a red circle)