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Getting a strange message: "Sandbox: attempt to open unexpected file"

I run firefox from the command line in a terminal, and recently I have been seeing this set of messages in the term when I load various webpages: Sandbox: attempt to open… (read more)

I run firefox from the command line in a terminal, and recently I have been seeing this set of messages in the term when I load various webpages:

Sandbox: attempt to open unexpected file /sys/devices/system/cpu/cpu0/cache/index2/size Sandbox: attempt to open unexpected file /sys/devices/system/cpu/cpu0/cache/index3/size Sandbox: attempt to open unexpected file /sys/devices/system/cpu/present Sandbox: attempt to open unexpected file /sys/devices/system/cpu Sandbox: unexpected multiple open of file /proc/cpuinfo

Mostly, there doesn't seem to be any loss of function related to this message. However, I have one anecdotal example of a forum website I have used in the past freezing on a blank screen at the same time these messages pop up in the term.

I can find no match for this particular message on the entire open internet. There is one near-match on bugzilla bug # Bug 1718493, but that is solved and done.

Any thoughts appreciated, thanks!

Asked by jbishop2112 15 hours ago

Last reply by jbishop2112 30 minutes ago

Log ins lost every time I start FireFox - only started happening recently.

I've checked a couple of the "similar topics" before posting here. I'm not sure if I am having the same problem or something else. Back Story: I have a "few" windows and… (read more)

I've checked a couple of the "similar topics" before posting here. I'm not sure if I am having the same problem or something else.

Back Story: I have a "few" windows and tabs open in FireFox. I would finish what I was doing, shut down and then the next time I booted up and loaded FireFox, all sessions would be restored and all log ins honoured (kept). That is: I was still logged in.

(Moving to now) Yesterday I powered up and ALL sites were logged out. About 20 log ins were needed. Hmmmmm... gmail, and the rest.

"Ok... something happened. No problems, things should be ok from now. I've logged in, so all is sweet."

Today I power up: All logs ins lost. Had to go through it all again.

Gmail is throwing security alerts at me hand over fist. Yeah, that is good in some ways. I get that part. But I've logged in.

Seems - my thoughts - that the cookies aren't being saved. But why? I haven't touched them or their settings.

Yes, I did do a clean out of older cookies. But left the gmail ones, and other sites I know I use. I have `adblocker ultimate` installed.

Now I am logged in, if I open the `cookies` and look I should see them there for the sites to which I am logged in - yes?


To be clear: When I am done, I do NOT `exit` FireFox. All windows, tabs, sessions are left. I just shut down the machine. Then next time I load FireFox and they are re-loaded and log ins are maintained.

Asked by teeny_weeny 5 days ago

Last reply by teeny_weeny 7 hours ago

geo.provider.network.url no longer works

Noticed geo.provider.network.url setting in about:config no longer works in firefox 102.0 ubuntu. I use it consistently so it was easy to notice that it no longer had any… (read more)

Noticed geo.provider.network.url setting in about:config no longer works in firefox 102.0 ubuntu. I use it consistently so it was easy to notice that it no longer had any effect after updating.

tested both on https://maps.google.com and https://browserleaks.com/geo

Is it possible to revert to an older version without losing my data?

Asked by tel2 1 day ago

Last reply by tel2 15 hours ago

Suppress third-party rejection warning

I have set my privacy settings to block all third-party cookies, but it makes wading through the console annoying when working with my userscripts. Not only do I not care… (read more)

I have set my privacy settings to block all third-party cookies, but it makes wading through the console annoying when working with my userscripts.

Not only do I not care as practically every site complains about it, but the warning isn't even useful in understanding what has been blocked most of the time. I just end up with a console filled with "Cookie “” has been rejected as third-party." from a bunch of random sources.

Is there some way to suppress these and only these warnings? I want to be able to actually use warnings in my scripts. As of now, I just don't display warnings and use the other logging levels.

Asked by PennyJim 1 day ago

No sound in Firefox only with Arte.tv direct or replay

Lorsque je veux regarder une émission en direct sur Arte.tv ou une émission en replay, le son n'est pas activé automatiquement. Je dois aller dans les réglages du son de … (read more)

Lorsque je veux regarder une émission en direct sur Arte.tv ou une émission en replay, le son n'est pas activé automatiquement. Je dois aller dans les réglages du son de mon interface Manjaro Linux Cinnamon pour activer le volume sonore qui est à zéro sur ce site. Je ne rencontre pas ce problème avec les sites de France Télévision (France 2 ou France 3). J'utilise la dernière version de Firefox v 101.0.1 64 bits

Asked by Philippe F 1 week ago

Last reply by Philippe F 1 day ago

codeblocks not rendering correctly

I have no problems with chrome but when I pull up some of the websites that have no problem loading up in chrome on firefox I get those half-cut codeblocks, not sure how … (read more)

I have no problems with chrome but when I pull up some of the websites that have no problem loading up in chrome on firefox I get those half-cut codeblocks, not sure how to fix this, any advice would be deeply appreciated!

Asked by shuklamanmohan21 1 week ago

Last reply by shuklamanmohan21 2 days ago

Cannot remove US dictionary

I have installed two dictionaries, "English (United Kingdom)", and "French". However, when I go to check a spelling, (right click/Languages over the suspect word), I am… (read more)

I have installed two dictionaries, "English (United Kingdom)", and "French". However, when I go to check a spelling, (right click/Languages over the suspect word), I am offered a third dictionary choice, "English (United States), which I do not want. I have removed the US dictionary and even the language pack but the menu item persists. I can find no way to get rid of it.

Please advise

Asked by nikkkko 6 days ago

Last reply by nikkkko 3 days ago

ATTENTION: default value of option mesa_glthread overidden by environment

firefox returns lots of: libEGL warning: DRI2: failed to authenticate ATTENTION: default value of option mesa_glthread overidden by environment When I adde… (read more)

firefox returns lots of:

       libEGL warning: DRI2: failed to authenticate
      ATTENTION: default value of option mesa_glthread overidden by environment


When I added a line to /etc/drirc to specify a value firefox returns:

       ATTENTION: option value of option mesa_glthread ignored.

How can I make this stop?

Asked by RandomTroll 3 days ago

Screen flashes on download link

I set FireFox to automatically save PDF links. Also I disabled the annoying downloads pop-up. When I click on a link, though, the screen briefly flashes white. The cursor… (read more)

I set FireFox to automatically save PDF links. Also I disabled the annoying downloads pop-up. When I click on a link, though, the screen briefly flashes white. The cursor stays in-place, so I can work under this condition, but it's an annoying distraction. Especially since nothing is being opened, so I'd expect the FireFox view to just stay as-is.

I've seen postings complaining about their blackscreen-themes flashing white when they do this. If I read right, the posted solutions were just to flash black instead of white. That's not what I'm trying to do here, I want to suppress the flash.

Asked by Carl 4 days ago

how to disable description popups of bookmarks

How can I stop Firefox from changing what appears on the screen when the cursor simply passes over it? (I suspect that feature of web browsers was created to make navigat… (read more)

How can I stop Firefox from changing what appears on the screen when the cursor simply passes over it? (I suspect that feature of web browsers was created to make navigating quicker while using the touch pad. My touch pad is disabled whenever a mouse is connected to the computer so that feature of web browsers isn't only not needed but is very annoying. Please tell my how to turn that feature off. Bob

Asked by asnt_level_two 6 days ago