937979 - [proxy] ftp access errors after https or after start

Status: RESOLVED INCOMPLETE

(Core :: Networking, defect)

Description

[Sentieri]

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:25.0) Gecko/20100101 Firefox/25.0 (Beta/Release)
Build ID: 20131025151332

Steps to reproduce:

Apparently Firefox has a bug when one tries to access an FTP site. If one
starts Firefox and enter an ftp site, there will be no problem most of the
time. The problem seems to happen when one is on an https web site. Please
note that all the tests described below where done through a proxy-server.

As an example of the bug, execute the following sequence:
1. Start Firefox (with a blank page)
2. Enter the url https://www.google.com
3. Press enter
4. Enter the url ftp://sourceware.org/pub/newlib/index.html
5. Press enter



Actual results:

You will see the problem, which will be Firefox trying to access
https://sourceware.org/pub/newlib/index.html and not ftp://sourceware.org/pub/newlib/index.html.

A second example of the bug will occur when one tries to access the ftp site
just after starting Firefox.

1. Start Firefor (with a blank page)
2. Enter the url ftp://sourceware.org/pub/newlib/index.html
3. Press enter

You will see a different problem now: Firefox will stay in a wait loop forever
(without transmitting anything, according to my Wireshark).

Apparently the problem occurs because the url is
ftp://sourceware.org/pub/newlib/index.html and not
ftp://ftp.sourceware.org/pub/newlib/index.html.

A third example would be:
1. Start Firefox (with a blank page)
2. Enter the url http://www.google.com
3. Press enter
4. Enter the url ftp://sourceware.org/pub/newlib/index.html
5. Press enter

Now it will work because it is coming from a regular web page.






Expected results:

Apparently the problem occurs because the url is
ftp://sourceware.org/pub/newlib/index.html and not
ftp://ftp.sourceware.org/pub/newlib/index.html.

A third example would be:
1. Start Firefox (with a blank page)
2. Enter the url http://www.google.com
3. Press enter
4. Enter the url ftp://sourceware.org/pub/newlib/index.html
5. Press enter

Now it will work because it is coming from a regular web page.

ALL TESTS DONE ON FIREFOX 17.0.10 THROUGH A PROXY. The same errors were not observed with Firefox 25.0 without proxy.

Comment 1

[Sentieri]

Attachment: I screw up with the copy/paste, so I am attaching the file which describes the problem.

Comment 2

[[:Aleksej]]

Can you try with 17.0.10 without the proxy, and a recent version with a proxy (like 25 or 24.0.1 ESR https://www.mozilla.org/en-US/firefox/organizations/all.html )?

Comment 3

[(mostly gone) XtC4UaLL [:xtc4uall]]

Feel free to reopen with comment 2 adressed.