Firefox 技術支援討論區

Hello, i need to enable and disable for privacy reasons, the setting "media.peerconnection.enabled" (aka WebRTC) via GUI to avoid to go everytime into about:config settings, search for the string, and double click it to disable or enable.

If is fleasible i prefer to add a custom icon in the customization tools bar windows, so i can drag it and move into the upper part of firefox freely (for example i would like to have it above url bar in the left corner, above the 3 lines application menù.

Thanks in advance if someone can help me.

I cant select the open previous tabs cheq box. it doesnt work. Very frustrating! This is after i made firefox the prefered and protected browser. I cant change that it seems.

So, I've seen many apps that looked like they'd be helpful one way or another. (The latest was Malware Browser Guard.) When I click to install them, I'm warned that I'll be allowing the app to read what I enter, change things, etc. When I read more it sounds more reasonable -- it sounds like that at each step I'll be asked if I give permission for the app to read or edit -- the implication being read this specific page or edit this particular entry.

So by downloading these apps am I giving blanket authority to them to monitor my every click and keystroke or am I only telling the browser that I might want them to be able to do these things, but I need to be informed first when they are actively seeking to do something so I can decide whether to allow it at that point?

I don't suppose I have any guarantee that any software I use isn't collecting my userids, passwords, sites I visit, email I write, etc. -- but when I'm specifically warned I am authorizing a program to read what I enter, etc. it gives me pause. It's one thing to not know, another to say, no problem, have at it.

I'd like to take advantage of what some of these apps purport to provide. I'm hoping for some reassurance about downloading ones from presumably reputable companies.

Thanks.

The printing quality is very bad when print from Firefox. It seems quality dpi< 150 although I changed print.default_dpi to 600 or 1200 but nothing happens. If I switch to "Save to PDF", quality will good. So I believe this problems come from the Firefox printing setting. When I print from another browser or another application such as Word, Excel, this problem never come. I also browse some topic about this problems and it seem no answer can be used. So is anyone here having the same problem as me? If yes, how can you resolve it? Please help to advise me. Thank you very much.

I can not send emails to gmail & optusnet addresses they bounce back. See example below.

paul.wolf@optusnet.com.au
   host extmail.optusnet.com.au [211.29.133.14]
   SMTP error from remote mail server after RCPT TO:<paul.wolf@optusnet.com.au>:
   550 5.1.1 <paul.wolf@optusnet.com.au>: Recipient address rejected:
   User unknown in virtual mailbox table
 merryhowie@gmail.com
   host gmail-smtp-in.l.google.com [74.125.200.27]
   SMTP error from remote mail server after end of data:
   550-5.7.26 This mail is unauthenticated, which poses a security risk to the
   550-5.7.26 sender and Gmail users, and has been blocked. The sender must
   550-5.7.26 authenticate with at least one of SPF or DKIM. For this message,
   550-5.7.26 DKIM checks did not pass and SPF check for [pnc.com.au] did not pass
   550-5.7.26 with ip: [203.42.40.162]. The sender should visit
   550-5.7.26  https://support.google.com/mail/answer/81126#authentication for
   550 5.7.26 instructions on setting up authentication.

s33-20020a635261000000b005533a94a2fdsi17542751pgl.466 - gsmtp

How do I fix this? I like to use Google for my searches and Yahoo takes over every time. I can switch it, but it's such a nuisance and time-waster to have to keep switching it back to Google. What can I do?

When I open my MSN home page, there is no sign-in showing. I have 'Keep Me Signed in' selected but occasionally I do need to sign in again or I want to sign out to sign in to another account, which is not an issue. Now, no sign-in. A few notes. When I open Outlook to view E-mail, my E-mail IS available & I can now sign in to my other E-mail account from there. When I open MSN in my tablet, MSN sign in is available. Tablet not using Firefox, so I thought this may be a Firefox issue. Let me know any thoughts. Great Thanks, Lee

After Firefox update 115.2.0esr (20230821110938) was installed on 9/8, I could not properly access my online banking accounts. Installation of Firefox update 115.2.1esr (20230912014149) on 9/16 did not resolve the issue. Can these two updates be uninstalled? I was still able to access my online banking accounts after Firefox update 115.1.0esr (20230724124053) was installed on 8/8. I want to revert back to that point to see if this will resolve the issue.

Thank you!

Firefox 115.2.1esr (20230912014149) Installed on: September 16, 2023 at 10:31:29 AM Status: The Update was successfully installed

Firefox 115.2.0esr (20230821110938) Installed on: September 8, 2023 at 8:50:49 PM Status: The Update was successfully installed

Firefox 115.1.0esr (20230724124053) Installed on: August 8, 2023 at 12:43:33 AM Status: The Update was successfully installed

I just updated to the esr version and I lost the ability to automatically play voice messages attached to my email. could you please let me know how to fix this problem Thank you

I am unable to get complete article in Wall Street Journal. No problem with Chrome. Have latest version Firefox and problem just started. I load WSJ, then click on article and only 3 lines show. I am WSJ subscriber and tech there said I need to contact Mozilla as Firefox is problem after Chrome worked OK. Thanks- Doug K.

I'm trying to revert Firefox back to its classical behavior of asking whether and where to save files. Changing "browser.download.improvements_to_download_panel" to FALSE does not work. Even with "Always ask where to save files" in SETTINGS selected. I've found numerous confusing write-ups on the forum.

As many have expressed, the decision to make saving files automatically the default is a TERRIBLE one.

I require a step by step method to change Firefox back to its original behavior concerning saving of files. I've used Firefox since its inception and this is the first time I've ever asked for help. If the current behavior is made an unchangeable default I will likely switch to another browser.

I don't know how I manage to turn this feature on and can't figure out how to turn it off without having to close the browser entirely. I assume it is some type of developer tool I accidentally enable.

It displays a green grid over webpages and purple outlines on window features like the scrollbar and address bar. I don't have a screenshot because I can't figure how to turn this on.

It seems I can easily turn this on by accident with a keystroke but no easy way to turn it off.

Say it isn't so? Can I not view the history of the one device I am using instead of getting the full history of all my sync'd devices? That's extraordinarily short-sighted if that is indeed the case. At least add a column in the history list that shows the device that entry came from...

gheez.

What do I expect, the help forum doesn't even return to top of page when moving between search result pages... ohh, Mozilla, what have you become?!

I have Firefox 115.1.0esr on Windows 7 desk top PC. When I try to log in to my Comcast Xfinity online account they say my browser certificate is invalid and I can't log in. Any suggestions? Thanks