Forum der Gemeinschaft Firefox

Hello every professional engineer

I knew how to convert the Firefox file sessionstore.jsonlz4 to .json file by using this website https://www.jeffersonscher.com/ffu/scrounger.html

and after editing the resulting .json file

How can I convert it back to .jsonlz4 file to return it to my Firefox profile as it was?

For a long time I've used Firefox on Linux with multiple instances each with their own profile folder. Today when I try to run these instances with separate profile folders I get the following error:

> Firefox is already running, but is not responding. To use Firefox, you must first close the existing Firefox process, restart your device, or use a different profile.

Profiles are created like this:

firefox --new-instance --createprofile "PROFILENAME ~/.firefox-PROFILENAME"

They are run like this:

firefox --new-instance --profile "~/.firefox-PROFILENAME"

It seems something has broken with the instance isolation as this is now throwing an error. Additionally I run "createprofile" it doesn't seem to actually create the folder.

Just for info this site works fine on other browsers on same machine, and on other machines. It is a Firefox issue.

Running version 127.0.1 on Linux.

Message is

Secure Connection Failed

An error occurred during a connection to vehicleenquiry.service.gov.uk. PR_CONNECT_RESET_ERROR

Error code: PR_CONNECT_RESET_ERROR

   The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.
   Please contact the website owners to inform them of this problem.

In recent Firefox versions, long container names are trimmed to around fifteen letters. Is there a way to disable this feature?

Since containers are named by the same user as the browser, people who want shorter names will name shorter ones by themselves. I wonder who wants this feature.

Version: 127.0.2

I have four browsers on my Linux box: Chrome, Chromium, Thorium, and Firefox.

Firefox is painfully slow using Google Earth, all the others are fast with Google Earth.

This is fairly recent behavior (last month or so).

As far as I can tell, FF is configured to allow Web Assembly (WASM) to be used for rendering images, etc. Since Google Earth is written in WASM, I don't have a clue why it is so horribly slow.

scrolling/sliding the image around on the screen is slow and jumpy. Displaying images attached to a waypoint is extremely slow: It takes 5-10 seconds to switch from one image to the next.

Any suggestions? Thanks in advance!

Fred

I am using Linux Mint with Firefox 127.0.2 (64-Bit)

In Preferences Applications, setting

 CSV-Dokument      to    open with firefox

opens edless new firefox Tabs - so I had to kill firefox. (setting CSV-Dokument to open with OpenOffice works fine. But this is not what I want.)

In Preferences Applications, I found further CSV types: application/csv-Typ CSV Document (application/text) CSV Document (octet/stream) CSV Document (application/x-download) Which applications should I use for them ?

I found the file "mimeTypes.rdf". However, I am not familiar with the syntax.

Installed 127.0 (20240606181944) from http://download.opensuse.org/repositories/mozilla/openSUSE_Leap_15.5/ and since then I've been unable to:

• Close a window by closing the last tab (the last tab X does nothing)
• The toolbar Account icon has nothing under it, have to go via Settings to manually sync and manage account

Hello and good day.

I am a little lazy and i want to open firefox(one window) on my two monitors, i can do this by open firefox then open another tab, then drag to the other monitor, but i want to know if is possible to add a command on the shortcut and do this in one go.

Note: i am using linux mint 20+.

Thanks.

One of the typical configuration in linux is to turn off the user namespaces and/or network namespaces. This is because most of the exploits in linux have been related to namespaces vulnerabilities.

If there is a Firefox ver 127.0.2, running on Linux in which the user namespace is turned off then the following is observed in the Troubleshooting information, i.e. about:support Seccomp-BPF (System Call Filtering) true Seccomp Thread Synchronisation true User Namespaces for privileged processes true User Namespaces false Content Process Sandboxing true Media Plugin Sandboxing true

So how come with the username turned off, the content process and media plugin is still sandboxed? Also is having user namespace turned off, as given above, a security risk?

However if the network namespace is turned off, i.e. max_net_namespaces is set to zero, then it renders the browser unusable. Nothing works. Why is that?

Is there some documentation somewhere where these namespaces and their impact is explained in detail?

I can't stay on this site for very long at all, and do my best to write out what I need as quickly as possible then leave. I would never contribute to answering any questions other then my own because how bright it is will eventually cause me pain.

In my view, it represents an amateurish view on website design and likely has an impact of skewing the regular user base to people that don't mind it.

Sincerely,

A user who only subjects themselves to this painfully, pointlessly white website if they absolutely have to.

Every time I open Firefox after closing it, I get the message below. I can click the button to restore session and it works every time. With each update, I hope to never see this message again, but after installing a new version on Ubuntu today, I see the same familiar message. This is not linked to a computer, or an operating system because I've seen this on both Ubuntu and Mac. If Firefox could literally just click the button that would be awesome.

Sorry. We’re having trouble getting your pages back.

We are having trouble restoring your last browsing session. Select Restore Session to try again.

I'm trying to troubleshoot a connection error and cannot find anything about 'SSL_ERROR_INSUFFICIENT_SECURITY_ALERT'? What is this trying to tell me exactly? Is there documentation or a debugging switch to elaborate this error, or is it really necessary to dig into the source code to find out about this? Even mozilla search and google comes up empty.

I'm running 115.12.0esr on Linux. I have another Linux system running 115.7.0esr that has no problem connecting to the same URL.

Thanks!

I have been a long term Firefox user, but recently Firefox on Ubuntu seems to have more and more problems.

Here is the most recent one: I can't buy bus tickets on a largest provider in Lithuania (nothing happens after clicking "Pay").

https://autobusubilietai.lt/en

It worked in Chromium Browser.

Tried normal, private mode, safe mode and nothing worked.

I have Firefox 127.0.2 (64-bit) on Ubuntu 22.04. I have 0 extensions or addons installed.

Another one: I cannot select the country code from the drop down list when entering phone number in Ryanair, so basically I can't buy flight tickets from there. Chromium Browser didn't work as well, but Safari did.

There’s right-click + “Forget about this site”, but that deletes the information for the entire second-level domain (say example.org).

When in the process of moving things from *.example.org to *.example.com peu à peu, then I need to be able to individually forget say chat.example.org because it’s already moved to chat.example.com but retain all information for other *.example.org hosts.

Dear friends,

I am using Firefox Browser 127.0.2 (64-bit) on a PC.

Sometimes it happens that an input field on a page in an IFRAME cannot be clicked. The buttons work, but you can't enter anything in the text field.

Only when I press in the address bar and then in the text field, now I can enter text in the text field.

Example page https://www.fantastic-food.ch Then click on the "Feedbacks" link.

Does anyone have an idea?

Kind regards Uwe

Translated with DeepL.com (free version)

Cannot use the hours dropdown on Calendar Widget in Mozilla, when I click on the hours, the dropdown appears for half a second and then dissapears, so I cannot use it. Works fine with Edge and Chromium. OS Ubuntu 24.04. Tried private mode and disabling add-ons - only one I have is UBlock. When inspecting the console does not show any errors.