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How to merge 2 Firefox history files

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Is there currently a way to merge the history from 2 different files, for example merge a previous profile backup with the current profile history file?

I have seen the same question asked long time ago (10 years ago), but the answer was to use the bookmarks (https://support.mozilla.org/en-US/questions/928204), and the history could be very long to manage it as bookmarks.

I want to know if in new Firefox versions (or in current/up-to-date addons) there is a way to merge 2 (or more) history files without using the bookmarks.

Is there currently a way to merge the history from 2 different files, for example merge a previous profile backup with the current profile history file? I have seen the same question asked long time ago (10 years ago), but the answer was to use the bookmarks (https://support.mozilla.org/en-US/questions/928204), and the history could be very long to manage it as bookmarks. I want to know if in new Firefox versions (or in current/up-to-date addons) there is a way to merge 2 (or more) history files without using the bookmarks.

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Hola El tema que el historial es una base de datos (SQlite) compartida con los marcadores y el historial de descargas, por lo tanto se necesitaría un programa de administración de base de datos para unirlas (2 bases de datos de 2 perfiles diferentes) es una tarea muy elaborada para un complemento o para el mismo Firefox, pero podrías conectar 2 Firefox Desktop (con su perfil distinto, cada uno con su historial) con la misma cuenta de Firefox sincronizando solo el historial lo que entiendo que unirá los historiales, previamente puedes hacer un respaldo de ambos perfiles, por si el resultado no es el esperado: https://support.mozilla.org/es/kb/perfiles-el-lugar-donde-firefox-almacena-tus-contr Pruebalo y comenta los resultados. Ademas Mozilla tiene una pagina para que los usuarios publiquen sus sugerencias para nuevas funcionalidades: https://connect.mozilla.org/t5/ideas/idb-p/ideas

Saludos