Firefox 技術支援討論區

"OpenH264 Video Codec provided by Cisco Systems, Inc." plugin will sit in the "will be installed shortly" status forever if you have HTTPS-Only mode enabled. I have been pulling my hair out for the last few days trying to figure out why I couldn't play YouTube or many other sites videos.

Turns out the site that the library is downloaded from has a bad certificate installed: https://ciscobinary.openh264.org/libopenh264-2.3.0-linux64.6.so.bz2

``` Websites prove their identity via certificates. Firefox does not trust this site because it uses a certificate that is not valid for ciscobinary.openh264.org. The certificate is only valid for the following names: a248.e.akamai.net, *.akamaihd-staging.net, *.akamaihd.net, *.akamaized-staging.net, *.akamaized.net

Error code: SSL_ERROR_BAD_CERT_DOMAIN ```

OS: Fedora 36 Firefox Version: 104.0 (64-bit)

to upgrade my firefox browser from 32 bit to 64 bit, I was following the mozilla instructions to download the 64 bit version, but then uninstall the 32 bit version before installing the 64 bit version. However, using the microsoft store to obtain the 64 bit version, it didn't just download it, it installed the 64 bit version. Now I have both. Should I merely remove 32 bit, and my profile file will be accessed to complete the set up of the 64 bit version? Don't want to loose bookmarks, passwords, etc. by removing 32 bit version.

Late last week, something changed in Firefox browser. I used to download csv files and Firefox would open them with the option to save as an excel file. Now it does not. I have to save it as csv then convert it to excel. It also doesn't seem to save my settings on the website I'm downloading from - I always have to manipulate the settings before downloading. It is a huge headache and I have resorted to using Chrome instead.

I'm buying a new computer and I'm wondering is there a method/procedure that I can use to transfer the entire FF browser including settings, extensions, bookmarks, and passwords without having to reinstall all those items individually? I know I can save and import bookmarks but what about everything else? I look forward to anyone comments. Thanks

My computer crashed and I have to reinstall everything now. I was using Firefox 78 with Mac OS 10.11.6 el capitan. Please provide link to where I can download this version.

I reinstalled Firefox and now need to import passwords from file where they were exported before reinstall. This article https://support.mozilla.org/en-US/kb/import-login-data-file explains how to import passwords from file, but this option is missing. The only option available is Import from another browser.

From here https://bugzilla.mozilla.org/show_bug.cgi?id=1702336 it looks like the feature was disabled 9 months ago. It is not clear what is the workaround in interim and what is the current state of resolution. For example, how do I use passwords CSV file to load into Microsoft Edge or Chrome and then import this data from that browser back to FireFox?

I am not good with computer knowledge. I got a gift of new laptop with Windows 11. How can I transfer all the bookmarks etc to new laptop? I am not able to see the steps mentioned by searching on Google

Hi there!

I'm attempting to migrate my Firefox (106.0.3) profile from the Linux Mint V20.3 on one SSD to a new installation of Linux Mint V21 on a separate SSD. I'm using the information supplied on this page:

https://support.mozilla.org/en-US/kb/back-and-restore-information-firefox-profiles

Step 4, under Backing up your profile says: Right-click on your profile folder (e.g. xxxxxxxx.default), and select Copy.

This folder, qspfoqtl.default, contains 1 file, named times.json, the contents of which are:

{ "created": 1618792039414, "firstUse": null }

Clearly, not my Firefox profile.

There is, however, a folder named nnob5aww.default-release that contains a bunch of directories and files (505.4MB) with names like bookmarkbackups, browser-extension-data... storage, weave.

Is this documentation incorrect as of this release of Firefox? And, should I be using the nnob5aww.default-release folder as the profile? I'm a little confused. (Most often, I'm a lot confused.) Any help would be appreciated.

Thanks in advance,

- Ralph

How does one specify which program opens a .zip file after it is downloaded?

Presently, the download functions properly, but when I click on the file, VLC media player opens; have no idea why; how can I specify 7-zip File Manager instead?

Thank you. Appreciate.

I've been using Firefox ESR for some years. Now I would like to know the best way to use and try the "normal" version of Firefox. Can I install it without uninstall ESR? Or must I do a clean install of Firefox after getting rid of ESR? If this is the case, what must I do to keep my profile, bookmarks, etc?

Dear TS, Friday January 28th 2022 Firefox updated my Win 10 PC to version 96.0.3 and wiped out everything from the previous Firefox version. No bookmarks, History, or add ons, everything is gone! How do we get everything back? I have a recent backup using Acronis on an external drive and even copies of old profiles from 2016. If the data can't be retrieved I'm thinking the only option is to remove Firefox and attempt restoring it from the Acronis backup. Sincerely, Robert.

Windows 10 - 22 H2 - All updates applied AMD Ryzen 7950x + DDR5 64GB RAM + 3090 RTX GPU + Plenty of Disk Space Firefox

Hi,

To get myself off MS Edge (as its Chromium based), I've come back to FF. But after I tried installing firefox standard and even the Extended Support Release I can not run it for the first time - I get this error

Your Firefox profile cannot be loaded. It may be missing or inaccessible.

I've followed the advice in the help pages, but it hasnt fixed the issue

https://support.mozilla.org/en-US/kb/profile-manager-create-remove-switch-firefox-profiles#w_start-the-profile-manager-when-firefox-is-closed

The same happens when I run

firefox -p

The firefox App Data folder contains no profile file at all....

C:\Users\marcu\AppData\Roaming\Mozilla\Firefox

Just

2022-11-14 12:49 PM <DIR> Crash Reports 2022-11-14 12:46 PM <DIR> Pending Pings

Inside crash reports is an empty events folder, and two crash report instance files (once for each attempt to start up FF) For example

InstallTime20221104133228

The above crash file conatins

1668458789

I've tried uininstalling and wiping all files, and I wanted to try an old versions BUT the link on the page is dead

https://ftp.mozilla.org/pub/mozilla.org/firefox/releases/ - Gives me 404

Do I have some service not running that this relies on ?

My old Linux computer died and I have removed the still good SSD from it. I have installed the latest Firefox on my new computer and would like to restore the bookmarks and other saved data to the new computer.

I am running Ubuntu 20.04, the old computer was on Ubuntu 18.04.

Can these things be restored, and if so what do I need to do?

Nightly is working really good in my Android Phone. Now I would like to install Nightly in my LinuxMint Desktop. I found a page at https://www.linuxcapable.com/how-to-install-firefox-next-beta-or-firefox-quantum-nightly-on-linux-mint/ But cannot install with all those commands. So what is the best way to install Nightly on my LInuxMint? Without all the commands and things I don't understand. I am 82 years old and cannot always do such. Thanks for your help.