<div dir="ltr"><br><div class="gmail_extra"><div style="font-family:arial,helvetica,sans-serif;font-size:small;color:rgb(0,0,0)" class="gmail_default">​<span style="color:rgb(0,0,255)">After updating Nightly (to 55.0a1 (2017-04-22) (64-bits)) this afternoon​ on my Windows 10 Pro (v 1703) machine, I noted to my surprise (and displeasure) that my bookmarks sidebar opened to the right of the Nightly window, instead of to the left, which has been its customary position. In Firefox 53.0, this was not the case, nor was it the case on Nightly (55.0a1 (2017-04-22) (64-bits)) or Firefox 53.0 on my Linux Mint 18.1 box....</span></div><div style="font-family:arial,helvetica,sans-serif;font-size:small" class="gmail_default"><span style="color:rgb(0,0,255)"><br></span></div><div style="font-family:arial,helvetica,sans-serif;font-size:small" class="gmail_default"><span style="color:rgb(0,0,255)">Any suggestions as to how I could entice the the bookmarks sidebar to return to the left side of the Nightly windows on my Windows 10 Pro machine ?...</span></div><div style="font-family:arial,helvetica,sans-serif;font-size:small" class="gmail_default"><span style="color:rgb(0,0,255)"><br></span></div><div style="font-family:arial,helvetica,sans-serif;font-size:small;color:rgb(0,0,0)" class="gmail_default"><span style="color:rgb(0,0,255)">Henri</span><br>
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