1239887 - [e10s] It's possible to accidentally stuck on a broken white page that doesn't show context menu and doesn't allow to drop file to open it

Status: REOPENED

(Firefox :: Menus, defect)

Description

[arni2033]

>>>   My Info:   Win7_64, Nightly 46, 32bit, ID 20160112030227
STR:
1. Open about:preferences
2. Set "a" as your homepage (without quotes)
3. Open new window (Ctrl+N)
4. While the page is still loading (the content is completely white),
   right-click the white area on the page   [you've got about 3-5 seconds]

Result:       No visible action
Expectations: Context menu should appear to allow me cancel the page loading
 
Notes:
 Actually, the same happens on "normal" pages when I switch to them, and multiprocess mode
 hangs a bit and shows a spinner instead of page content. Context menu isn't shown.

 Please improve the Summary and/or request a screencast if you think it's necessary.

Comment 1

[Karla Merza [Away. Please needinfo? Brindusa Tot[:brindusat] ]]

User Agent 	Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:46.0) Gecko/20100101 Firefox/46.0
Build ID 	20160204004009

Tested on Windows 7 x64 with the Aurora 46.0a2 build. I can reproduce the problem.

Comment 2

[arni2033]

Sorry, I have to reopen this, because (a) there was no sensible explanation  (b) usually nobody really
tests anything, and just reads bug descriptions - that's how bugs get triaged (from what I saw).
So I assume that this bug was resolved w/o full understanding of "bad" consequences of this bug.
Luckily, I now have more time to update the description.

STR_2:
1. Open url   data:text/html,<a href="http://briangrinstead.com/files/sleepy.php">Link</a>
2. Shift+MiddleClick the link
3. Press Escape to stop page loading
4. Right-click on the page OR drag-n-drop a file from hard drive to that page

AR:  No visible action
ER:  Page should respond to right-click and _especially_ to "drop file" action


STR_3:
0. Download attachment 8675621 [details] and change its file extension to .old
1. Open   about:preferences   or   about:newtab   in Firefox
2. Drag-n-drop downloaded file (Step 1) from hard drive to the page from Step 2
3. Press Escape to close Firefox save dialog
4. Right-click on the page OR drag-n-drop a file from hard drive to that page


STR_4:  (bug 1327656)
1. Open  about:config, type "permissions.default.image" in filter field, set the pref to "2"
2. Open url  https://bugzilla.mozilla.org/skins/contrib/Mozilla/tabzilla.png
3. Right-click on the page OR drag-n-drop a file from hard drive to that page


Note:  I hope now I'll get an answer why Mozilla wants me to stuck on pages where I can't do anything

Comment 3

[Hugh Kimmel]

Attachment: same problem

Thanks from lessfifiwe1983.