When I enable Tab Mix Plus on Nightly, the browser is completely broken after startup. The tab bar appears in the wrong place, containing one tab with no text, and no page content loads. The only way to fix it is to start in safe mode and disable Tab Mix Plus for future sessions; I haven't figured out how to obtain browser console output to figure out what's breaking, unfortunately.

did you have enabled e10s?

No.

Please report this to the add-on author.

Tab Mix Plus is #21 on AMO's top add-ons, installed by more than 1.1M users. Their Firefox experience will be totally broken. This was a regression from bug 1001090 (ES6 "temporal dead zone" for `let`) in Nightly 35 build 2014-09-16: > JavaScript error: chrome://tabmixplus/content/tabmix.js, line 1048: TypeError: redeclaration of variable cwb > JavaScript error: chrome://tabmixplus/content/click/click.js, line 946: TypeError: redeclaration of variable count > JavaScript strict warning: chrome://tabmixplus/content/tab/tabbrowser_4.xml, line 453: ReferenceError: reference to undefined property Tabmix.initialization > JavaScript error: chrome://tabmixplus/content/tab/tabbrowser_4.xml, line 453: TypeError: Tabmix.initialization is undefined > JavaScript strict warning: chrome://tabmixplus/content/links/setup.js, line 52: ReferenceError: reference to undefined property Tabmix.initialization > JavaScript error: chrome://tabmixplus/content/links/setup.js, line 52: TypeError: Tabmix.initialization is undefined

(In reply to Dão Gottwald [:dao] from comment #3) > Please report this to the add-on author. This isn't invalid, it should be put in tech evang.

Tab Mix Plus development build work without any problem! I'v fixed the "redeclaration of variable" errors on the same day bug 1001090 was out. Remember to always use the latest development version available when using Firefox pre-release versions, let it be Beta, Aurora or Nightly.

(In reply to Ed Morley [:edmorley] from comment #5) > (In reply to Dão Gottwald [:dao] from comment #3) > > Please report this to the add-on author. > > This isn't invalid, it should be put in tech evang. No need to evangelize, as onemen usually stays on top of recent developments. And when he doesn't, there are direct feedback channels that should be used. From the TechEvang / Add-ons description: "Note that ordinary add-on bugs should not be filed here, but should be filed with the add-on's own bug tracker."

(In reply to Dão Gottwald [:dao] from comment #7) > From the TechEvang / Add-ons description: "Note that > ordinary add-on bugs should not be filed here, but should be filed with the > add-on's own bug tracker." I had not seen that, thank you :-) That said, given now comment 6, a clearer status would be fixed.