Is it possible for one browser to read/write cookies of another one?

user340165

I'm not looking for a way to synchronize cookies between browsers, this has been answered here.

I'd like to know, if Chrome could read/write Firefox's cookies, with or without me realizing. (Or any other combination of browsers...)

Is this, maybe, prohibited by some OS-mechanism? Firefox itself could hardly protect its cookies, while not running...

Would there be a way to detect this?

How could I make sure, that Firefox-Cookies are not read by Chrome and added to my Google profile? Is it enough to use Firefox for websites, that I don't want in my Google history? (e.g. banking...)

jornane

Cookies are per-browser, but plugins (such as Flash) have their own storage and can be used to share information between browsers. Nowadays I believe Chrome has its own sandboxed Flash, so it's possible that this also has its own storage.

That being said, browsers in theory can generally read each others cookies, as cookies are nothing more than files on the filesystem. But to the best of my knowledge (I didn't bother to check), browsers do not have code to do this. With an extension with filesystem access this can be possible, though.

If there is a large security hole in one browser that would allow filesystem access from JavaScript, it is possible for a website to steal cookies from another browser, although I would think that in such a case, cookie stealing will be the least of your worries.

On Red Hat Enterprise Linux and siblings, SElinux is enabled by default. SElinux gives contexts to files and processes. This actually makes it possible to prevent a browser on the OS level from reading the cookies of another browser.

Collected from the Internet

Please contact [email protected] to delete if infringement.

edited at2022-07-6

Comments

0 comments

TOP Ranking

Article

Is it possible for one browser to read/write cookies of another one?

Is it possible for one browser to read/write cookies of another one?

Failed to listen on localhost:8000 (reason: Cannot assign requested address)

Loopback Error: connect ECONNREFUSED 127.0.0.1:3306 (MAMP)

How to import an asset in swift using Bundle.main.path() in a react-native native module

pump.io port in URL

Compiler error CS0246 (type or namespace not found) on using Ninject in ASP.NET vNext

BigQuery - concatenate ignoring NULL

ngClass error (Can't bind ngClass since it isn't a known property of div) in Angular 11.0.3

ggplotly no applicable method for 'plotly_build' applied to an object of class "NULL" if statements

Spring Boot JPA PostgreSQL Web App - Internal Authentication Error

How to remove the extra space from right in a webview?

java.lang.NullPointerException: Cannot read the array length because "<local3>" is null

Jquery different data trapped from direct mousedown event and simulation via $(this).trigger('mousedown');

flutter: dropdown item programmatically unselect problem

How to use merge windows unallocated space into Ubuntu using GParted?

Change dd-mm-yyyy date format of dataframe date column to yyyy-mm-dd

Nuget add packages gives access denied errors

Svchost high CPU from Microsoft.BingWeather app errors

Can't pre-populate phone number and message body in SMS link on iPhones when SMS app is not running in the background

12.04.3--- Dconf Editor won't show com>canonical>unity option

Any way to remove trailing whitespace *FOR EDITED* lines in Eclipse [for Java]?

maven-jaxb2-plugin cannot generate classes due to two declarations cause a collision in ObjectFactory class

Any way to remove trailing whitespace FOR EDITED lines in Eclipse [for Java]?