Showing questions tagged:

Firefox Sandbox implications of User Namespaces being disabled

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… (read more)

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?

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How to prevent Firefox from opening links in a non-default container

I'm using the Firefox Multi-Account Containers extension and it's great. I have a number of containers manually created and use them according to my personal preference. … (read more)

I'm using the Firefox Multi-Account Containers extension and it's great. I have a number of containers manually created and use them according to my personal preference. No sites are associated with containers via settings, it's always manual.

Among those containers there's one I use for all things Google (Gmail etc). Which was great, as it allowed me to use both my personal Google account and G-Suite integrated with the workplace's SSO by simply using a default container for work stuff.

I updated Firefox to version 127.0.1, after which I discovered that clicking on Google Docs links in external applications now opens a tab in that custom container I created for my personal use. Which is clearly inconvenient, as most Google Docs links I open are work-related, so my personal account has nothing to do with them. Opening same links from within Firefox, e.g. by clicking on a bookmark, still opens a default container tab.

As I mentioned, there are no explicit association between Google links and that container, the "Limit to designated sites" option is switched off.

Is there anything I can do to revert back to the old behaviour, which is opening every external link in a default container?

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Updates ??{Diabled by my organization} ?? NOT TRUE

I am seeing the message that Updates are being managed by my organization: This my computer and NO Organization manages my updates! I may have paused them while updatin… (read more)

I am seeing the message that Updates are being managed by my organization: This my computer and NO Organization manages my updates! I may have paused them while updating my OS early this week. Now running Linux Mint 21.3I am seeing the message that Updates are being managed by my organization: This my computer and NO Organization manages my updates

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Customize Links on Firefox New Tab Page

For many years I have used the ability to set shortcuts to website on the Firefox home tab, using the method given at: https://support.mozilla.org/en-US/kb/customize-item… (read more)

For many years I have used the ability to set shortcuts to website on the Firefox home tab, using the method given at: https://support.mozilla.org/en-US/kb/customize-items-on-firefox-new-tab-page#w_pin-unpin-or-remove-a-shortcut.

However, today, when I try to edit a shortcut link, I do not get the 3 dots menu by right clicking on a shortcut tile.

Is this a recent change, a bug, an issue with my installation (which has been stable for many years)?

How can I get back the functionality back?

I am using Firefox 127.0 (64 bit) on Windows (Windows 11, all up to date).

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Youtube video no longer play with update 127

After Firefox updated to v127 YouTube videos stopped working for me. They work fine on Microsoft Edge and Google Chrome. Considering this only started happening with the … (read more)

After Firefox updated to v127 YouTube videos stopped working for me. They work fine on Microsoft Edge and Google Chrome. Considering this only started happening with the latest update and the fact that YouTube videos work fine on other browsers the problem I feel has to be somewhere in Firefox. When I try to play a video I get the white circle going around in the center of the screen and the video does not play.

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Password security

OK - I must be missing something. On my previous browser, Opera, if I wanted to see details of my passwords then I needed to put in the computer password, so keeping them… (read more)

OK - I must be missing something. On my previous browser, Opera, if I wanted to see details of my passwords then I needed to put in the computer password, so keeping them quite secure. However, Firefox seems to let anyone using the browser to access the full details of all my passwords, even offering to copy them! This has to be the most insecure approach possible - surely this can't be correct, can it?

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unwanted shortcuts on "new tab" in firefox browser

how are shortcuts created on my "new tab" home page in firefox browser. I used to be able to create the shortcuts I wanted, not random shortcuts that I might have visited… (read more)

how are shortcuts created on my "new tab" home page in firefox browser. I used to be able to create the shortcuts I wanted, not random shortcuts that I might have visited once. Now shortcuts appear that I don't want. I know I can remove them by dismissing them but I should not get them in the first place. Please help.

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Firefox update 127.0.2 (64-bit)

Latest update (127.0.2) erased all my data. Gone are my bookmarks, passwords, sign-in shortcuts, history, etc. and I'm trying not to panic. Most of my passwords are bac… (read more)

Latest update (127.0.2) erased all my data. Gone are my bookmarks, passwords, sign-in shortcuts, history, etc. and I'm trying not to panic. Most of my passwords are backed up but my bookmarks are gone as is all my sign-in shortcuts, etc.

I always try to keep updated and never have had a problem with anything other than having to relearn a few new things; but this is a first for me.

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Unable to open multiple new tabs from address bar

So, I'm switching from Chrome and there's this one thing I can't seem to be able to replicate in firefox. When I start my day I usually open several tabs from different p… (read more)

So, I'm switching from Chrome and there's this one thing I can't seem to be able to replicate in firefox.

When I start my day I usually open several tabs from different pages of the same website. In Chrome, I would do that by: -typing the name of the website in my address bar -all the pages I frequently visited in that website show in my suggestions -I middlemouse-click all of them, one after the other -this opens one new tab for all of them -I then switch to those tabs and browse them

However, replicating this in firefox seems impossible. When middle-mouse-clicking the 1st link, I would have my window forcibly switch to it, not letting me open the other tabs without changing tabs again. Recently I learned I can avoid this forced switch by middle-mouse-clicking the URL on my address bar while holding shift, which is great! . . . Except it still closes my address bar, not letting me click the other ones without having to type the website's name in it again.

I don't mind holding shift (though I wish I didn't have to) but I really just want to middle mouse click multiple links in my address' suggestion bar and open them in succession, without shifting back to it after each time.

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Weird distorted audio on you tube videos only. No problem using Edge browser

I isolated weird audio distortion when playing you tube videos to Firefox browser. Watching video from non YouTube sites does not have a problem. Watching you tube video… (read more)

I isolated weird audio distortion when playing you tube videos to Firefox browser. Watching video from non YouTube sites does not have a problem. Watching you tube videos on Microsoft Edge browser does not have any distortion. Appears to have happened after latest 6/14/2024 update

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Requesting a Way to Sort Bookmarks...

Hello, I am hoping that there is a way in which I can organise (permanently, not just the current display) my bookmarks alphabetically though still separated by folders a… (read more)

Hello,

I am hoping that there is a way in which I can organise (permanently, not just the current display) my bookmarks alphabetically though still separated by folders and bookmarks. In case that isn't clear, the order would be:

  1. 1 all of the folders grouped together in alphabetical order, then
  2. 2 all the bookmarks grouped together in alphabetical order.

Thanks in advance for any assistance you can offer.

Sam

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When trying to signin on Facebook I get the message:Update Your Browser You’re using a web browser that isn’t supported by Facebook.

As of 2024 06 20 there are many websites that I cannot login anymore one being Facebook with this message:Update Your Browser You’re using a web browser that isn’t suppor… (read more)

As of 2024 06 20 there are many websites that I cannot login anymore one being Facebook with this message:Update Your Browser You’re using a web browser that isn’t supported by Facebook.

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FIREFOX STOPPED WORKING

Firefox on Windows 10 desk top suddenly stopped working with error message XUL Runner Error. platform version 127.0.1 not compatible with Min version >= 127.0 Max ver… (read more)

Firefox on Windows 10 desk top suddenly stopped working with error message

XUL Runner Error. platform version 127.0.1 not compatible with Min version >= 127.0 Max version <=127.0

N.B. This is another machine - not this lap top

Please advise

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YouTube Lag

I am using Windows 11 and FF 127.02. I have read the lag issue with Youtube was suppose to be corrected with FF 127.02 but it is not. I have been using FF for many yea… (read more)

I am using Windows 11 and FF 127.02. I have read the lag issue with Youtube was suppose to be corrected with FF 127.02 but it is not. I have been using FF for many years now an love it. It is my understanding that it is the ad blockers causing the slow down. Do you have an estimated date when this will be resolved. I have tried every trick included running it in diagnostic mode or trouble shooting mode. Nothing seems to work. Not even a refresh.

Thanks

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PR_CONNECT_RESET_ERROR on https://vehicleenquiry.service.gov.uk/

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 C… (read more)

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.
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bookmark issue on mac

Hi, i have formatted my macbook pro, before i have made a back up with timemachine. I'd like to restore my bookmarks but i can't find it on the back up. I have tried to f… (read more)

Hi, i have formatted my macbook pro, before i have made a back up with timemachine. I'd like to restore my bookmarks but i can't find it on the back up. I have tried to find on Library>Application support but in this folder there is not the Firefox folder in wich i expected to find the Profile folder.

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How to disable minimize on double click

Hello, recently I've been having issues where if misclick anywhere on the title bar (even in the small space between bookmarks) firefox will minimize/restore when I didn'… (read more)

Hello, recently I've been having issues where if misclick anywhere on the title bar (even in the small space between bookmarks) firefox will minimize/restore when I didn't want it too. How do I disable this in about:config?

المُؤرشفة 3 197

FF 127.0 (x64) - Can no longer re-arrange tabs or create bookmarks using drag/drop

I just noticed that I can no longer re-arrange tabs by using drag-n-drop or create bookmarks in my bookmarks bar using drag-n-drop. Is this a new "feature" in 127.0? … (read more)

I just noticed that I can no longer re-arrange tabs by using drag-n-drop or create bookmarks in my bookmarks bar using drag-n-drop. Is this a new "feature" in 127.0?

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