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I have lost reminderfox since Firefox was updated to version 57. How can I get reminderfox to work again?
[email protected]

Cette critique concerne une version précédente du module ( 

Starting with Firefox Quantum (version 57), Mozilla is ditching the old addon framework (which they call “Legacy addons”) and only supporting addons using a new web-based framework.

Unfortunately long-story short: as this is a passion side-project, we do not have the time and resources to do a complete rewrite of ReminderFox to make it work with the new framework at this time. Please see this thread for further background:!msg/reminderfox/ZX3Hsm3R1jU/MU0S50LhEAAJ

What can you do?

1) One option is to install Firefox ESR (Extended Service Release) which will continue to work with legacy addons into next year.

You could run that and continue to run ReminderFox, but even then it will only be a short-term solution. You could at least print out your ReminderFox reminders or export them to ICS format which allows you to import into another calendar app (MS Outlook, Google calendar, et c.).

You can also run Pale Moon (a version of Firefox which supports legacy addons) or Mozilla Thunderbird mail client, where ReminderFox will continue to run.

2) Grab your reminder data (it should not be lost, even though ReminderFox is not showing in the latest Firefox), and import it into another calendar or reminder app.

If you just want to get ahold of your reminder data to import into another program, you can find it as part of your user profile directory. For example, on Windows7:


3) Find another alternative add-on that runs on current Firefox Quantum and has the capabilities that you need.

One example is:

On Sat, Nov 18, 2017 at 10:31 AM, Mozilla Add-ons <[email protected]> wrote:

A user has left a review for your add-on, ReminderFox.

1 out of 5 stars.


You can read the review and reply to it here:

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