Firefox 社群討論區

The story is when I accidentally clicked on a sick video, YouTube start to recommend me similar sick videos.

So my question is how does YouTube get my identity?

I'm not logged in. my profile is actually a snapshot, so when I restart Firefox, it go back to the snapshot. I even restarted my ISP router to get a new IP address. This did not work.

Only when I create a new profile with "firefox -P" does YouTube start to see me as a new person.

So how does YouTube identify my Firefox profile? I don't think it's in the https request headers. Weird.

Noticed yesterday but not as prominent, firefox suddenly steals all window focus, trying to do anything in any other window is pushed into firefox no matter if it is minimised or in another workspace. I have tested this in a clean install along with a clean profile. Bitwarden and other windows seem to act weird when they are interacted with.

This all works well and good on b8 and stable. I am using wayland (Ubuntu 22.* default), but xwayland is available.

When you add a new bookmark to a folder it's added at the end of the existing list.

Is there a way to make Firefox add it at the top of the list, instead?

I found an old answer, but, sadly, the extension granting my wish is no longer.

Also, I already know about sorting, but it's not what I need, because I'm doing a lot of manual bookmarks reordering and sorting will nullify it.

Thank you :)

I have read through the user threads and tried everything I could find including malware searching and, of course, setting google as my search preference but no matter what I try the splash page for Firefox (re-installed twice) is Yahoo. Has anyone found a cure for this issue on their Mac - my Mac parameters are in the attached screenshot.

Thanks for any sage wisdom!

I have 2 instances of Firefox: I use stable for all my professional work, and I use Developer Edition (Aurora Channel) for personal things. The stable branch works fine. In Aurora though, certain key combos will not work. This even persists in troubleshooting (safe) mode.

Specifically, it seems anything using both ctrl+alt will not register alt, only ctrl. alt, alt+shift, and ctrl+shift all seem to work fine, but ctrl+alt and ctrl+alt+shift do not. Again, this works fine in stable, so I am clueless as to why it doesn't work in my other instance.

Another detail is that this happens on multiple websites, not just one. The post prominent one is Google Sheets. In sheets, you can insert the date using `ctrl+;`, the time using `ctrl+shift+;`, and both using `ctrl+alt+shift+;`. Inserting them separately works fine, but both causes only one to insert.

How to restore cookies which have been deleted by mistake. I have accidently cleared all cookies from the cache. however, some of the important information from one of the softwares (Zerodha) was stored in the cache as cookies. Now the entire data is lost. How can it be recovered

Currently, when I try and open downloaded .txt files and .log files (that is, when I click on them directly from the download pop-up that appears at the top-right of the browser), Firefox inexplicably opens Aegisub on my machine as the app to use. This is in contrast to when I open it directly from within my file browser, where it opens the Kate text editor, as suggested by the default app option in the permissions of the filetype.

How do I change the apps Firefox uses to open downloaded files? I've tried going into my settings and looking at applications, but .txt and .log don't appear, so I'm not quite sure what to do.

I'm on Kubuntu 22.04.3 LTS, using the Firefox deb package.

Why Firefox lacks having right click option (context menu) for multiple search engines like Chrome (Chromium browsers) and Edge has somewhat "Chrome-like omnibar in Mozilla Firefox"?

If I am using a certain search engine as default but don't use it all the time or want to use another without changing the default search engine or want to search a term or sentence via any search engine, then Firefox has no such option or addons (yes, checked thoroughly for latter).

Opera has from day one, Vivaldi also has it, Chrome allows it via extensions, Edge does via addons, Brave as chrome does via addons, Naver Whale (South Korean browser, underrated, seriously) has options to put more than 1 search engine for search results.

Adding images below for reference.

Why Firefox is seriously so old and outdated and nowhere close to standards of 2024 and 2025?

Somebody made a post 10 years ago around 2014 🤯🤯🤯 and Firefox, as usual went their way as they are doing now.

https://connect.mozilla.org/t5/ideas/why-firefox-lacks-having-right-click-option-context-menu-for/idi-p/81175

https://superuser.com/questions/776139/chrome-like-omnibar-in-mozilla-firefox

https://www.reddit.com/r/firefox/comments/vpffu/can_i_get_something_like_chromes_omnibar_for_ff/?rdt=48216

https://chromewebstore.google.com/detail/search-with-duckduckgo/amkahembcklobdkoaaepgfpmdnobmdkh

https://chromewebstore.google.com/detail/Brave%20Search/jojedekgcncccnjhilimdojbfnfamkda

https://chromewebstore.google.com/detail/duckduckgo-search-context/fepjgbgflmnaieiodmkkclhjfihdhoid

In English, the meaning of this error is: Title: Configuration error Content: Failed to read configuration file. Please contact your system administrator.

I had this error for a long time. But it's not too serious. Just hit ok and I can use all the recovery tabs as before without any problems. But every time I open windows and open the browser, this message appears. I feel very uncomfortable and tired without knowing why. Even reinstalling the browser didn't fix the problem, I tried it before and lost my favorite browser theme. And 1 more thing if someone can explain. If it can't read the configuration file, how can I still use the browser? What does that configuration file do?

This message only appears when I have not opened the Firefox browser on my computer. If I already have the tab, I can open another firefox browser without that message appearing. Only when I close all tabs. Open it again and it will appear. And click ok to use normally.

Rodrigo Viana Rocha detect the right problem in AppArmor configuration and fixit Netflix on Firefox: "The WidevineCdm plugin has crashed"

For years I had my Firefox sync working fine between Win10 PC, Android and several Win10 laptops. However yesterday I installed Windows 11 on the same PC I have Windows 10 (bought new disk) just to have a fresh install. Started with installing firefox - and here when problems begin. It couldn't let me log in into Sync, I was being immediately logged out ("Account disconnected"). Somehow I managed to log in, but then all my previous data was erased (passwords, bookmarks). I thought ok, maybe later it's gonna sync. Started installing extensions, saved one password. When trying to sync tabs with Android phone it didn't work, it couldn't see any tabs (but it could share tabs between devices!). On Android I still have old passwords and bookmarks saved, same as on old Win10 (on which I got logged out). Alright - it didn't sync after restart so I removed Firefox profile on machine, started again with logging in - and it synced only ONE password that I saved previously on same Win11 machine, with extensions I freshly installed back then. So it saved to sync improper data, forgetting about old? Logged out from all of my machines in Firefox Account. Now I'm back to my original machine on Windows 10. And what? I can't log in! Same error as on Win11 after install - "Account disconnected". Checked about:sync-log and found error logs - pasted into "Troubleshooting information" of this post.

Thanks

I know it takes just two mouse clicks to open the About dialog, but I'd like to bookmark it so when I check my daily bookmarks by right-clicking a folder and clicking "Open All Bookmarks", it would be displayed. This would be a convenient, albeit forceful, way to keep Firefox up-to-date. The About dialog isn't modal, so that shouldn't be an issue.

Client type : desktop Firefox Developer Edition Client version : 117.0b9 (64bits) Client language : Korean OS type : Windows 10 Home 22H2 OS version : 19045.3208

Steps to reproduce : 1. Run Firefox Developer Editon. 2. Try searching using the navigation bar on the home screen. 3. Enjoy that nothing happens.

Expected Result : Happy life at Firefox

Actual Result: Tedious LOADING

I've been using Firefox Developer Edition for the past two years without problems. From some point on(about 1 week ago), All browser's search functions suddenly don't work. Navigation bar? Not work. Searchig from Bookmark? Not work. Do not use google? Not work even with duckduckgo. with out DNS? Not work even with 142.250.206.206. There is only one website that i can access with Firefox Developer Edition. It is Mozilla's official website At this moments, I curious that "why isnt work>?" So i used Developer tools, And then I found something amazing. There was no request or response on the Network tab! (Of course, I pressed Ctrl + R) And then, on second thought, I found that the JS function that should have been small in the lower left of the browser screen was not displayed. Finally, I thought, hmm... My Firefox is broken! So i found the FireFox, and then i uninstall it, and reinstall it! All the External Plugin works, OK then What if FireFox????? Unfortunately, Firefox Developer Edition's problem remained the same. I'm sorry that i couldn't even give you a possible cause of the problem. But i SUFFER for a week! Please resolve the issue.....

On the about:sync page the button to "Export to File..." button has no effect. Regardless if I select "Limit history engine fetch to first 5000 records" or "Anonymize Data".

It used to work. So I wonder why nothing happens when I click the button now... There is no network call made when I click the button. No error.

for new file types the option to save the default behaviour for future downloads is no longer avaliable for me. Also, the option to set in "Settings -> General -> Files and Applications" does not show any of the new file types.

I've tried re-installing firefox, as well as refreshing but still the same results.

Basically title.

Every time I close the browser and re-open it, the favicons disappear. I use the favicons to navigate to websites on my bookmark toolbar, but they're missing from my regular bookmarks, too.

I found an old thread that appeared similar, and the solution was to take a working copy of the favicons.db file and re-import it if it breaks (while the browser application is closed). However, this did not work.

Any help would be greatly appreciated.