[Mozilla Enterprise] browser.migration.version

[Mike Kaply]

I'm unable to recreate this. Do you have any other custom settings applied
to your browser?

This preference is used to migrate various settings in the browser.

Can you check the javascript console to see if there is an error? It would
probably reference nsBrowserGlue.js

Mike

On Mon, Aug 26, 2019 at 7:54 AM Tiago Marques Delboni <
tiago.delboni at almg.gov.br> wrote:

> More info about the issue: if I revert the value of
> browser.migration.version from 66 to 22 the problem with the tabs
> reappears. Changing again from 22 to 66 make it go away but exhibits a page
> saying that there was a problem restoring pages from last session (bellow,
> in Portuguese):
>
>
>
>
> *Tiago Marques Delboni*
> Gerência de Aplicações e Suporte a Clientes / GTI
> (31) 2108-7700
> [image: Assembleia Legislativa de Minas Gerais] <http://www.almg.gov.br> [image:
> Facebook da Assembleia] <http://www.facebook.com/assembleiademinas> [image:
> Twitter da Assembleia] <http://www.twitter.com/assembleiamg> [image:
> Instagram da Assembleia] <http://www.instagram.com/assembleiademinas> [image:
> Youtube da Assembleia] <http://www.youtube.com/assembleiamg/>
> Em 23/08/2019 13:49, Tiago Marques Delboni escreveu:
>
> Hi Mike
>
> No errors on the console and the value was not a string.
>
> *Tiago Marques Delboni*
>
> Em 23/08/2019 13:31, Mike Kaply escreveu:
>
> I just tried changing my value to 22 and things still worked.
>
> Can you check and see if there was an error on the console?
>
> Mike Kaply
>
> On Fri, Aug 23, 2019 at 11:29 AM Mike Kaply <mkaply at mozilla.com> wrote:
>
>> That is an internal preference that shouldn't be messed with (it should
>> get set automatically)
>>
>> The current version is actually 87 (It is not tied to the browser
>> version).
>>
>> And an old version should work fine (unless it was a string for some
>> reason)?
>>
>> Mike
>>
>> On Fri, Aug 23, 2019 at 11:24 AM Tiago Marques Delboni <
>> tiago.delboni at almg.gov.br> wrote:
>>
>>> Hi all!
>>>
>>> After upgrading from ESR 52.9 to ESR 60.8, some users reported that only
>>> the first tab opened in Firefox was working. They can open new tabs but
>>> cannot navigate on them.
>>>
>>> I've found that the problem was with the property
>>> "browser.migration.version" set in
>>> "%appdata%\Mozilla\Firefox\Profiles\{userprofile}\prefs.js":
>>>
>>> user_pref("browser.migration.version", 22);
>>>
>>> Removing this line or setting the value to 66 fix the issue. So, how
>>> exactly does this property works? I couldn't find any information about
>>> this.
>>>
>>> --
>>>
>>> *Tiago Marques Delboni*
>>> Gerência de Aplicações e Suporte a Clientes / GTI
>>> (31) 2108-7700
>>> [image: Assembleia Legislativa de Minas Gerais] <http://www.almg.gov.br> [image:
>>> Facebook da Assembleia] <http://www.facebook.com/assembleiademinas> [image:
>>> Twitter da Assembleia] <http://www.twitter.com/assembleiamg> [image:
>>> Instagram da Assembleia] <http://www.instagram.com/assembleiademinas> [image:
>>> Youtube da Assembleia] <http://www.youtube.com/assembleiamg/>
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>
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