Import MBOX File Greyed Out Thunderbird Issue- Here’s The Instant Solution

admin | Modified: 2020-08-05T17:36:42+05:30 | fix-error, Thunderbird error solution

Hello, everyone! I am using Mozilla Thunderbird for the past couple of years. Yesterday I tried to import MBOX files in the Thunderbird account, but all of a sudden I got an error message stating “impossible to Import in this folder Thunderbird”.

I have checked all the possible things like internet connection and tried to import the files again but the result is still the same. Can anyone please suggest how to resolve this import MBOX file greyed out Thunderbird issue effectively?

Mozilla Thunderbird is one of the prominent desktop email client application. It stores its emails in the MBOX format. Despite being a reliable email platform, many users face some issues with Thunderbird MBOX files. One of the frequent errors that users face is the “import MBOX file greyed out Thunderbird” issue.

So, in this post, we are going to discuss everything about this MBOX file issue. Initially, we will talk about what does the import MBOX file greyed out mean along with the primary causes of the error. Afterward we will share the feasible solution to resolve this issue.

Let’s get started on!

Do You Know About “Import MBOX Greyed Out-File” Issue?

When the user try to migrate or move their MBOX file to Mozilla Thunderbird then they will get this error. Due to which the user is unable to import MBOX folder in Thunderbird application. This greyed out situation will create difficulties in accessing the emails and may lead to data loss if the issue is not fixed timely.

Usually, the error comes with the following error message:

Cannot Import messages: “The Import Messages from a Directory” is Light Grey.

Now, let’s find out what are possible factors that may cause this error.

Read About – How to Import MBOX into Thunderbird.

Reasons Behind Occurrence of Thuderbird Import MBOX File Greyed Out

These are few common factors that will cause issues in the .mbox files and result in the file greyed out error.

  1. Mozilla Thunderbird application not updated.
  2. Bugs in the Thunderbird.
  3. Software Conflicts.
  4. Missing Files from Directory.

Now, let’s jump to the resolution of the error.

Manual Tips to Resolve “Import MBOX Greyed Out-File” Issue

Here, we are providing you few manual tricks that might help you in resolving the Mozilla Thunderbird folder greyed out issue.

  1. Close the Thunderbird. Launch the application again and try to import the MBOX file.
  2. Check the MBOX file structure, especially the header.
  3. Update to the latest version of the Mozilla Thunderbird application.
  4. Disable add-ons and other software programs that are causing conflicts.

If the above-mentioned tricks don’t work for you, then you have to go for some third-party application. Read the subsequent section to know the efficient solution to resolve the issue.

Recommendation – If you need to view data of MBOX file into an Outlook email application, then use MBOX to PST converter. It will export MBOX file data into Outlook importable format.

If Manual Method Fail to Fix Import MBOX File Greyed Out Thunderbird Issue

If you still face “Import MBOX File Greyed Out Thunderbird” issue and you need to view data of MBOX file, then you have to use Free MBOX viewer tool.

MBOX Free Viewer tool is designed with an advanced methodology that allows users to view the data of MBOX file. The utility supports all those email clients that has MBOX file extension like Mozilla Thunderbird, Entourage, Apple Mail, Spicebird, Eudora, Opera Mail, Pocomail, etc.

Concluding Things Up

When the Mozilla Thunderbird users attempt to import MBOX file into Thunderbird, sometimes they can face this import MBOX file greyed out Thunderbird issue. So, in order to resolve this issue, we have mentioned the few manual tricks that help to overcome the greyed MBOX file issue.