The scrollbar for <select> appears on the left side with RTL interface. Testcase https://dl.dropboxusercontent.com/u/95157096/85f61cf7/f4l5ag33qq.html Screenshot https://dl.dropboxusercontent.com/u/95157096/85f61cf7/71piv4scj4.png

WFM. It's on the right with the latest Nightly and e10s enabled. Are you running the latest nightly?

Ok, I guess I didn't enable RTL. How do you do that?

(In reply to Loic from comment #1) > WFM. It's on the right with the latest Nightly and e10s enabled. > > Are you running the latest nightly? Yes, I am running the latest nightly.

(In reply to Loic from comment #2) > Ok, I guess I didn't enable RTL. How do you do that? Switch to the RTL interface: 1. Go to "about:config". 2. Create a string preference with name "intl.uidirection.en" and value "rtl".

(In reply to Loic from comment #2) > Ok, I guess I didn't enable RTL. How do you do that? You can also just use an l10n build of an rtl language. I can confirm bug this using latest Nightly Hebrew build on Mac.

Speaking to Ehsan, it seems there are two main points here: 1) The scrollbar should ideally be on the left in a RTL interface. 2) The scrollbar and the dropdown arrow on the select widget should be in alignment. Ehsan's opinion is that having them in alignment outweighs having the scrollbar on the left, and so we could just revert back to the existing non-e10s behaviour (should be a fairly easy fix). Maybe long term we want to actually do the right thing here though, and modify the widget, but that will likely be fairly involved. Axel, what do you think we should do here? I think we should land a patch to move the scrollbar to the right as that should be fairly easy, then track fixing it properly, if that's what we decide it should look like.

I'm not good in RTL beyond the point that I know people that are. CCing a bunch of folks.

Comment on attachment 8605988 [details] [diff] [review] .0001-Bug-1164099-Always-ensure-the-scrollbar-is-on-the-ri.patch.swp I think you've accidentally uploaded some kind of binary.

Comment on attachment 8606392 [details] [diff] [review] 0001-Bug-1164099-Always-ensure-the-scrollbar-is-on-the-ri.patch This works well - thanks gw280!

I have successfully reproduced the bug in firefox Nightly 41.0a1(Build ID: 20150512030215) with windows 10 PRO N (64 bit) Verified as fixed with 43.0a1 as comment 0 Build ID: 20150821030204 Mozilla/5.0 (Windows NT 10.0; WOW64; rv:43.0) Gecko/20100101 Firefox/43.0 [testday-20150821]

Successfully reproduce this bug on Nightly 41.0a1 (2015-05-12) (Build ID: 20150512030215) with the instruction from comment 0 on Linux x64 This Bug is now verified as fixed on Latest Firefox Nightly 43.0a1 (2015-08-27) Build ID: 20150827030213 User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:43.0) Gecko/20100101 Firefox/43.0 As it is also verified on Windows (Comment 14), Marking it as verified!