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Problem signing into Dropbox

Posted: Thu Feb 21, 2019 12:59 pm
by nigeld
In the last couple of weeks I have started to have problems with signing into Dropbox. I have whitelisted the site but keep getting "Cross scripting attack" boxes popping up. I used to be able to just ignore those and carry on to sign into Dropbox but now I can't. I have restarted Firefox with addons disabled, one by one and found out that NoScript is the culprit but as I have whitelisted it, I don't know what to do next. When I press on the Sign In box on Dropbox it just hangs.

Re: Problem signing into Dropbox

Posted: Thu Feb 21, 2019 4:11 pm
by nigeld
This is the text I get from the No Script XSS Warning box.

Code: Select all

NoScript detected a potential Cross-Site Scripting attack

from https://8166291.fls.doubleclick.net to https://adservice.google.com.

Suspicious data:

(URL) https://adservice.google.com/ddm/fls/i/src=8166291;type=dpbxs0;cat=dpbx_002;ord=182190671357;gtm=ghostery;auiddc=394008115.1550764691;_dc_1=1;~oref=https://marketing.dropbox.com/login?referrer=

Re: Problem signing into Dropbox

Posted: Thu Feb 21, 2019 4:36 pm
by barbaz
Are you sure that XSS warning is the reason NoScript is preventing you logging in to Dropbox? It looks related to ad(s), which I would think shouldn't be involved in the sign-in process.

Re: Problem signing into Dropbox

Posted: Thu Feb 21, 2019 4:42 pm
by nigeld
I'm not positive - I'm not that good with stuff like this. However, when I disabled No Script in my Firefox browser, I was able to sign in OK.

Re: Problem signing into Dropbox

Posted: Thu Feb 21, 2019 4:51 pm
by nigeld
Further to above, I saw Ghostery was mentioned in the XSS warning. I have Ghostery installed as well. I disabled it and got into Dropbox! I assume that Ghostery is someway at fault but don't know how. Any pointers you can give appreciated thanks.

Re: Problem signing into Dropbox

Posted: Thu Feb 21, 2019 8:33 pm
by barbaz
Ghostery has a long history of conflicting with other extensions and causing weird issues. For blocking tracking I recommend uBlock Origin.

Re: Problem signing into Dropbox

Posted: Fri Feb 22, 2019 2:50 pm
by nigeld
I appreciate the reply thank you - I will give that a try.

BTW - interesting to note that I was just replying to this and No Script threw up an XSS warning for your site....

Re: Problem signing into Dropbox

Posted: Fri Feb 22, 2019 4:19 pm
by nigeld
I installed Umatrix and got the same XSS warning as before but this time the wording was different. Do you have a problem with UMatrix being installed at the same time as NoScript?

Re: Problem signing into Dropbox

Posted: Sun Feb 24, 2019 11:06 am
by nigeld
I uninstalled Umatrix, then tried Dropbox again and nothing. I temporarily disabled NoScript and got into Dropbox. I enabled it again and couldn't get in so has to be something to do with NoScript. I've whitelisted Dropbox, so would appreciate some advice please.

Re: Problem signing into Dropbox

Posted: Sun Feb 24, 2019 1:19 pm
by therube
I've whitelisted Dropbox
And what about dropboxstatic.com?

Or if you allow scripts globally?

Re: Problem signing into Dropbox

Posted: Sun Feb 24, 2019 5:42 pm
by nigeld
Not tried that but thank you.

Re: Problem signing into Dropbox

Posted: Sun Feb 24, 2019 6:42 pm
by nigeld
I had actually got dropboxstatic whitelisted.

I'm now getting a message up which says :-

Code: Select all

[

NoScript detected a potential Cross-Site Scripting attack

from https://8166291.fls.doubleclick.net to https://adservice.google.com.

Suspicious data:

(URL) https://adservice.google.com/ddm/fls/i/src=8166291;type=dpbxs0;cat=dpbx_002;ord=7671603710857;gtm=2wg241;auiddc=910476993.1551033434;_dc_1=1;~oref=https://marketing.dropbox.com/login?referrer=]

Re: Problem signing into Dropbox

Posted: Mon Feb 25, 2019 12:07 pm
by therube
Create a new Profile.
Install only NoScript.
Confirm that you can log in.

Then go back & figure out what is wrong in your original Profile.

If neither work, then figure out what on your system is blocking you.

Re: Problem signing into Dropbox

Posted: Mon Feb 25, 2019 3:46 pm
by nigeld
Thanks for the reply, I have pm'd you..

Re: Problem signing into Dropbox

Posted: Mon Feb 25, 2019 3:53 pm
by therube
I don't have the knowledge to help myself. I was recommended by someone to use NoScript in conjunction with another couple of programmes in order to give me some peace of mind. I have no idea what I should be checking to try and rectify the problem.
Create a new Firefox profile.
Install NoScript.
Attempt to log in to dropbox.
Adjust (site) permissions, as needed.
Attempt to log in to dropbox, again - this time with the needed (site) permissions.
Confirm that you can.